213333012 has 36 divisors (see below), whose sum is σ = 540583680. Its totient is φ = 70936272.

The previous prime is 213332993. The next prime is 213333143. The reversal of 213333012 is 210333312.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8013 + ... + 22155.

Almost surely, 2^213333012 is an apocalyptic number.

It is an amenable number.

213333012 is an abundant number, since it is smaller than the sum of its proper divisors (327250668).

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

213333012 is a wasteful number, since it uses less digits than its factorization.

213333012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572 (or 14567 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 213333012 is about 14605.9238667056. The cubic root of 213333012 is about 597.5203328690.

Adding to 213333012 its reverse (210333312), we get a palindrome (423666324).

The spelling of 213333012 in words is "two hundred thirteen million, three hundred thirty-three thousand, twelve".