1210110221120 has 56 divisors (see below), whose sum is σ = 2881677726600. Its totient is φ = 484026826752.

The previous prime is 1210110221093. The next prime is 1210110221137. The reversal of 1210110221120 is 211220110121.

It can be written as a sum of positive squares in 4 ways, for example, as 240562782784 + 969547438336 = 490472^2 + 984656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210110221095 and 1210110221104.

It is a congruent number.

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, 12678536 + ... + 12773624.

Almost surely, 2^{1210110221120} is an apocalyptic number.

1210110221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210110221120 is an abundant number, since it is smaller than the sum of its proper divisors (1671567505480).

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

1210110221120 is an equidigital number, since it uses as much as digits as its factorization.

1210110221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134875 (or 134865 counting only the distinct ones).

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

Adding to 1210110221120 its reverse (211220110121), we get a palindrome (1421330331241).

The spelling of 1210110221120 in words is "one trillion, two hundred ten billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty".