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10202112201020 = 225593778590963
BaseRepresentation
bin1001010001110101110101…
…0001100001000100111100
31100010022102201222212102012
42110131131101201010330
52314122411210413040
633410441410550352
72102035564612625
oct224353521410474
940108381885365
1010202112201020
1132837674070a3
1211892a28983b8
13590093c47b8c
14273adb954a4c
1512a5a8a3e865
hex9475d46113c

10202112201020 has 24 divisors (see below), whose sum is σ = 21424798936464. Its totient is φ = 4080775677696.

The previous prime is 10202112201019. The next prime is 10202112201103. The reversal of 10202112201020 is 2010221120201.

It is a super-2 number, since 2×102021122010202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10202112200986 and 10202112201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3107942 + ... + 5483021.

It is an arithmetic number, because the mean of its divisors is an integer number (892699955686).

Almost surely, 210202112201020 is an apocalyptic number.

10202112201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202112201020 is an abundant number, since it is smaller than the sum of its proper divisors (11222686735444).

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

10202112201020 is a wasteful number, since it uses less digits than its factorization.

10202112201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650349 (or 8650347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10202112201020 its reverse (2010221120201), we get a palindrome (12212333321221).

The spelling of 10202112201020 in words is "ten trillion, two hundred two billion, one hundred twelve million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 59377 118754 237508 296885 593770 1187540 8590963 17181926 34363852 42954815 85909630 171819260 510105610051 1020211220102 2040422440204 2550528050255 5101056100510 10202112201020