1210211120 has 40 divisors (see below), whose sum is σ = 2830037616. Its totient is φ = 481280768.

The previous prime is 1210211039. The next prime is 1210211173. The reversal of 1210211120 is 211120121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1210211120² = 2929221909943308800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29882 + ... + 57561.

Almost surely, 2^1210211120 is an apocalyptic number.

1210211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210211120 is an abundant number, since it is smaller than the sum of its proper divisors (1619826496).

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

1210211120 is a wasteful number, since it uses less digits than its factorization.

1210211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87629 (or 87623 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1210211120 is about 34788.0887661280. The cubic root of 1210211120 is about 1065.6642083537.

Adding to 1210211120 its reverse (211120121), we get a palindrome (1421331241).

Subtracting from 1210211120 its reverse (211120121), we obtain a palindrome (999090999).

The spelling of 1210211120 in words is "one billion, two hundred ten million, two hundred eleven thousand, one hundred twenty".