1210109102120 has 64 divisors (see below), whose sum is σ = 2887129033920. Its totient is φ = 454903297024.

The previous prime is 1210109102089. The next prime is 1210109102179. The reversal of 1210109102120 is 212019010121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1210109102092 and 1210109102101.

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, 838322 + ... + 1767201.

It is an arithmetic number, because the mean of its divisors is an integer number (45111391155).

Almost surely, 2^{1210109102120} is an apocalyptic number.

1210109102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210109102120 is an abundant number, since it is smaller than the sum of its proper divisors (1677019931800).

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

1210109102120 is a wasteful number, since it uses less digits than its factorization.

1210109102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606234 (or 2606230 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1210109102120 in words is "one trillion, two hundred ten billion, one hundred nine million, one hundred two thousand, one hundred twenty".