213213300012 has 18 divisors (see below), whose sum is σ = 538955841788. Its totient is φ = 71071099992.

The previous prime is 213213299993. The next prime is 213213300049. The reversal of 213213300012 is 210003312312.

213213300012 is a `hidden beast` number, since 2 + 1 + 321 + 330 + 0 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×213213300012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2961295798 + ... + 2961295869.

Almost surely, 2^213213300012 is an apocalyptic number.

It is an amenable number.

213213300012 is an abundant number, since it is smaller than the sum of its proper divisors (325742541776).

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

213213300012 is a wasteful number, since it uses less digits than its factorization.

213213300012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922591677 (or 5922591672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213213300012 its reverse (210003312312), we get a palindrome (423216612324).

The spelling of 213213300012 in words is "two hundred thirteen billion, two hundred thirteen million, three hundred thousand, twelve".