1210212113 has 12 divisors (see below), whose sum is σ = 1334607120. Its totient is φ = 1096575480.

The previous prime is 1210212109. The next prime is 1210212149. The reversal of 1210212113 is 3112120121.

It is not a de Polignac number, because 1210212113 - 2² = 1210212109 is a prime.

It is a super-2 number, since 2×1210212113² = 2929226716903849538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210212713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20858 + ... + 53436.

It is an arithmetic number, because the mean of its divisors is an integer number (111217260).

Almost surely, 2^1210212113 is an apocalyptic number.

It is an amenable number.

1210212113 is a deficient number, since it is larger than the sum of its proper divisors (124395007).

1210212113 is a wasteful number, since it uses less digits than its factorization.

1210212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32908 (or 32897 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1210212113 is about 34788.1030382515. The cubic root of 1210212113 is about 1065.6644998192.

Adding to 1210212113 its reverse (3112120121), we get a palindrome (4322332234).

The spelling of 1210212113 in words is "one billion, two hundred ten million, two hundred twelve thousand, one hundred thirteen".