20210000102120 has 32 divisors (see below), whose sum is σ = 45499943046600. Its totient is φ = 8079121317888.

The previous prime is 20210000102077. The next prime is 20210000102249. The reversal of 20210000102120 is 2120100001202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18848778544324 + 1361221557796 = 4341518^2 + 1166714^2 .

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, 152392985 + ... + 152525544.

Almost surely, 2^{20210000102120} is an apocalyptic number.

20210000102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210000102120 is an abundant number, since it is smaller than the sum of its proper divisors (25289942944480).

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

20210000102120 is a wasteful number, since it uses less digits than its factorization.

20210000102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304920197 (or 304920193 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20210000102120 its reverse (2120100001202), we get a palindrome (22330100103322).

The spelling of 20210000102120 in words is "twenty trillion, two hundred ten billion, one hundred two thousand, one hundred twenty".