10211121020120 has 64 divisors (see below), whose sum is σ = 23221357568640. Its totient is φ = 4040721216000.

The previous prime is 10211121020047. The next prime is 10211121020161. The reversal of 10211121020120 is 2102012111201.

It is a junction number, because it is equal to n+sod(n) for n = 10211121020095 and 10211121020104.

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, 3946634 + ... + 5999846.

It is an arithmetic number, because the mean of its divisors is an integer number (362833712010).

Almost surely, 2^{10211121020120} is an apocalyptic number.

10211121020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211121020120 is an abundant number, since it is smaller than the sum of its proper divisors (13010236548520).

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

10211121020120 is a wasteful number, since it uses less digits than its factorization.

10211121020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054556 (or 2054552 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10211121020120 its reverse (2102012111201), we get a palindrome (12313133131321).

The spelling of 10211121020120 in words is "ten trillion, two hundred eleven billion, one hundred twenty-one million, twenty thousand, one hundred twenty".