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20020212002220 = 2235927073599191
BaseRepresentation
bin1001000110101010100011…
…00111111110110110101100
32121212220122222220121021120
410203111101213332312230
510111002343233032340
6110325054115300540
74134261342142023
oct443252147766654
977786588817246
1020020212002220
116419584827501
1222b40745aa750
13b22b89888971
144d2daa76b8ba
1524ab8952c4d0
hex1235519fedac

20020212002220 has 48 divisors (see below), whose sum is σ = 56057213845248. Its totient is φ = 5338664130240.

The previous prime is 20020212002179. The next prime is 20020212002221. The reversal of 20020212002220 is 2220021202002.

It is a super-2 number, since 2×200202120022202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20020212002220.

It is not an unprimeable number, because it can be changed into a prime (20020212002221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3762825 + ... + 7362015.

It is an arithmetic number, because the mean of its divisors is an integer number (1167858621776).

Almost surely, 220020212002220 is an apocalyptic number.

20020212002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020212002220 is an abundant number, since it is smaller than the sum of its proper divisors (36037001843028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020212002220 is a wasteful number, since it uses less digits than its factorization.

20020212002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691910 (or 3691908 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20020212002220 its reverse (2220021202002), we get a palindrome (22240233204222).

The spelling of 20020212002220 in words is "twenty trillion, twenty billion, two hundred twelve million, two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 92707 185414 278121 370828 463535 556242 927070 1112484 1390605 1854140 2781210 3599191 5562420 7198382 10797573 14396764 17995955 21595146 35991910 43190292 53987865 71983820 107975730 215951460 333670200037 667340400074 1001010600111 1334680800148 1668351000185 2002021200222 3336702000370 4004042400444 5005053000555 6673404000740 10010106001110 20020212002220