20112010121020 has 48 divisors (see below), whose sum is σ = 44757257227200. Its totient is φ = 7577948295680.

The previous prime is 20112010120981. The next prime is 20112010121051. The reversal of 20112010121020 is 2012101021102.

It is a super-2 number, since 2×20112010121020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422852800 + ... + 422900359.

It is an arithmetic number, because the mean of its divisors is an integer number (932442858900).

Almost surely, 2^{20112010121020} is an apocalyptic number.

20112010121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112010121020 is an abundant number, since it is smaller than the sum of its proper divisors (24645247106180).

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

20112010121020 is a wasteful number, since it uses less digits than its factorization.

20112010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845753238 (or 845753236 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20112010121020 its reverse (2012101021102), we get a palindrome (22124111142122).

The spelling of 20112010121020 in words is "twenty trillion, one hundred twelve billion, ten million, one hundred twenty-one thousand, twenty".