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22020221102020 = 2255212113264981
BaseRepresentation
bin1010000000110111110110…
…11101001110011111000100
32212222010001001212202211021
411000123323131032133010
510341234403100231040
6114455541103320524
74431623415040111
oct500337335163704
985863031782737
1022020221102020
11701a7a5823089
1225777bb5b0144
13c39661c87c1b
14561ada509908
15282be320624a
hex1406fb74e7c4

22020221102020 has 24 divisors (see below), whose sum is σ = 46331221465368. Its totient is φ = 8791182316800.

The previous prime is 22020221101969. The next prime is 22020221102027. The reversal of 22020221102020 is 2020112202022.

It can be written as a sum of positive squares in 4 ways, for example, as 258667856836 + 21761553245184 = 508594^2 + 4664928^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22020221101985 and 22020221102003.

It is not an unprimeable number, because it can be changed into a prime (22020221102027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056622071 + ... + 1056642910.

It is an arithmetic number, because the mean of its divisors is an integer number (1930467561057).

Almost surely, 222020221102020 is an apocalyptic number.

22020221102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020221102020 is an abundant number, since it is smaller than the sum of its proper divisors (24311000363348).

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

22020221102020 is a wasteful number, since it uses less digits than its factorization.

22020221102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113265511 (or 2113265509 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22020221102020 its reverse (2020112202022), we get a palindrome (24040333304042).

The spelling of 22020221102020 in words is "twenty-two trillion, twenty billion, two hundred twenty-one million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 521 1042 2084 2605 5210 10420 2113264981 4226529962 8453059924 10566324905 21132649810 42265299620 1101011055101 2202022110202 4404044220404 5505055275505 11010110551010 22020221102020