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10222112020 = 2254571118393
BaseRepresentation
bin10011000010100100…
…10000110100010100
3222101101201002112111
421201102100310110
5131413330041040
64410155200404
7511212342601
oct114122206424
928341632474
1010222112020
11437613006a
121b93446104
13c6ba172c3
146cd85d6a8
153ec633dea
hex261490d14

10222112020 has 24 divisors (see below), whose sum is σ = 21513426984. Its totient is φ = 4079894016.

The previous prime is 10222112011. The next prime is 10222112029. The reversal of 10222112020 is 2021122201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10222112011) and next prime (10222112029).

It can be written as a sum of positive squares in 4 ways, for example, as 3493519236 + 6728592784 = 59106^2 + 82028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222112029) 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, 550057 + ... + 568336.

It is an arithmetic number, because the mean of its divisors is an integer number (896392791).

Almost surely, 210222112020 is an apocalyptic number.

10222112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222112020 is an abundant number, since it is smaller than the sum of its proper divisors (11291314964).

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

10222112020 is a wasteful number, since it uses less digits than its factorization.

10222112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118859 (or 1118857 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10222112020 its reverse (2021122201), we get a palindrome (12243234221).

The spelling of 10222112020 in words is "ten billion, two hundred twenty-two million, one hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 457 914 1828 2285 4570 9140 1118393 2236786 4473572 5591965 11183930 22367860 511105601 1022211202 2044422404 2555528005 5111056010 10222112020