20100102022020 has 24 divisors (see below), whose sum is σ = 56280285661824. Its totient is φ = 5360027205856.

The previous prime is 20100102021959. The next prime is 20100102022073. The reversal of 20100102022020 is 2022020100102.

It is a super-2 number, since 2×20100102022020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20100102021987 and 20100102022005.

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, 167500850124 + ... + 167500850243.

It is an arithmetic number, because the mean of its divisors is an integer number (2345011902576).

Almost surely, 2^{20100102022020} is an apocalyptic number.

20100102022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100102022020 is an abundant number, since it is smaller than the sum of its proper divisors (36180183639804).

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

20100102022020 is a wasteful number, since it uses less digits than its factorization.

20100102022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335001700379 (or 335001700377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20100102022020 its reverse (2022020100102), we get a palindrome (22122122122122).

The spelling of 20100102022020 in words is "twenty trillion, one hundred billion, one hundred two million, twenty-two thousand, twenty".