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20020020202220 = 2251001001010111
BaseRepresentation
bin1001000110101010001100…
…01100010100101011101100
32121212220011122000011010212
410203111012030110223230
510111002000132432340
6110325023104321552
74134253522646243
oct443250614245354
977786148004125
1020020020202220
116419496535305
1222b40203132b8
13b22b58c12b3c
144d2d8d0c195a
1524ab77792a65
hex123546314aec

20020020202220 has 12 divisors (see below), whose sum is σ = 42042042424704. Its totient is φ = 8008008080880.

The previous prime is 20020020202187. The next prime is 20020020202229. The reversal of 20020020202220 is 2220202002002.

It is a happy number.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20020020202195 and 20020020202204.

It is not an unprimeable number, because it can be changed into a prime (20020020202229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500500505036 + ... + 500500505075.

It is an arithmetic number, because the mean of its divisors is an integer number (3503503535392).

Almost surely, 220020020202220 is an apocalyptic number.

20020020202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020020202220 is an abundant number, since it is smaller than the sum of its proper divisors (22022022222484).

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

20020020202220 is a wasteful number, since it uses less digits than its factorization.

20020020202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001001010120 (or 1001001010118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20020020202220 its reverse (2220202002002), we get a palindrome (22240222204222).

The spelling of 20020020202220 in words is "twenty trillion, twenty billion, twenty million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1001001010111 2002002020222 4004004040444 5005005050555 10010010101110 20020020202220