213112412 has 12 divisors (see below), whose sum is σ = 373483656. Its totient is φ = 106402800.

The previous prime is 213112399. The next prime is 213112451. The reversal of 213112412 is 214211312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35198 + ... + 40805.

It is an arithmetic number, because the mean of its divisors is an integer number (31123638).

Almost surely, 2^213112412 is an apocalyptic number.

It is an amenable number.

213112412 is a deficient number, since it is larger than the sum of its proper divisors (160371244).

213112412 is a wasteful number, since it uses less digits than its factorization.

213112412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76708 (or 76706 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 213112412 is about 14598.3701830033. The cubic root of 213112412 is about 597.3143037369.

Adding to 213112412 its reverse (214211312), we get a palindrome (427323724).

The spelling of 213112412 in words is "two hundred thirteen million, one hundred twelve thousand, four hundred twelve".