20210102122120 has 32 divisors (see below), whose sum is σ = 45490696312320. Its totient is φ = 8080846797760.

The previous prime is 20210102122109. The next prime is 20210102122181. The reversal of 20210102122120 is 2122120101202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20210102122094 and 20210102122103.

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, 99711592 + ... + 99914071.

It is an arithmetic number, because the mean of its divisors is an integer number (1421584259760).

Almost surely, 2^{20210102122120} is an apocalyptic number.

20210102122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210102122120 is an abundant number, since it is smaller than the sum of its proper divisors (25280594190200).

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

20210102122120 is a wasteful number, since it uses less digits than its factorization.

20210102122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199628205 (or 199628201 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210102122120 its reverse (2122120101202), we get a palindrome (22332222223322).

The spelling of 20210102122120 in words is "twenty trillion, two hundred ten billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty".