131210212 has 12 divisors (see below), whose sum is σ = 262420480. Its totient is φ = 56232936.

The previous prime is 131210173. The next prime is 131210213. The reversal of 131210212 is 212012131.

131210212 is an admirable number.

It is a super-2 number, since 2×131210212² = 34432239466169888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131210192 and 131210201.

It is not an unprimeable number, because it can be changed into a prime (131210213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343012 + ... + 2343067.

Almost surely, 2^131210212 is an apocalyptic number.

It is an amenable number.

131210212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131210212 is a wasteful number, since it uses less digits than its factorization.

131210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686090 (or 4686088 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 131210212 is about 11454.7026150835. The cubic root of 131210212 is about 508.1468203561.

Adding to 131210212 its reverse (212012131), we get a palindrome (343222343).

The spelling of 131210212 in words is "one hundred thirty-one million, two hundred ten thousand, two hundred twelve".