1210110110120 has 32 divisors (see below), whose sum is σ = 2750817321000. Its totient is φ = 479053897728.

The previous prime is 1210110110117. The next prime is 1210110110129. The reversal of 1210110110120 is 210110110121.

It can be written as a sum of positive squares in 4 ways, for example, as 1126472313316 + 83637796804 = 1061354^2 + 289202^2 .

It is a super-2 number, since 2×1210110110120² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210110110129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155938145 + ... + 155945904.

Almost surely, 2^{1210110110120} is an apocalyptic number.

1210110110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210110110120 is an abundant number, since it is smaller than the sum of its proper divisors (1540707210880).

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

1210110110120 is a wasteful number, since it uses less digits than its factorization.

1210110110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311884157 (or 311884153 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1210110110120 its reverse (210110110121), we get a palindrome (1420220220241).

Subtracting from 1210110110120 its reverse (210110110121), we obtain a palindrome (999999999999).

The spelling of 1210110110120 in words is "one trillion, two hundred ten billion, one hundred ten million, one hundred ten thousand, one hundred twenty".