20100112222020 has 48 divisors (see below), whose sum is σ = 56280906624768. Its totient is φ = 5359973506560.

The previous prime is 20100112221991. The next prime is 20100112222063. The reversal of 20100112222020 is 2022221100102.

It is a super-2 number, since 2×20100112222020² (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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4148412 + ... + 7576908.

It is an arithmetic number, because the mean of its divisors is an integer number (1172518888016).

Almost surely, 2^{20100112222020} is an apocalyptic number.

20100112222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100112222020 is an abundant number, since it is smaller than the sum of its proper divisors (36180794402748).

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

20100112222020 is a wasteful number, since it uses less digits than its factorization.

20100112222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526220 (or 3526218 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20100112222020 its reverse (2022221100102), we get a palindrome (22122333322122).

The spelling of 20100112222020 in words is "twenty trillion, one hundred billion, one hundred twelve million, two hundred twenty-two thousand, twenty".