213213332 has 12 divisors (see below), whose sum is σ = 374443776. Its totient is φ = 106229400.

The previous prime is 213213317. The next prime is 213213347. The reversal of 213213332 is 233312312.

213213332 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213213317) and next prime (213213347).

213213332 is strictly pandigital in base 9.

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, 93044 + ... + 95307.

It is an arithmetic number, because the mean of its divisors is an integer number (31203648).

Almost surely, 2^213213332 is an apocalyptic number.

It is an amenable number.

213213332 is a deficient number, since it is larger than the sum of its proper divisors (161230444).

213213332 is a wasteful number, since it uses less digits than its factorization.

213213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188638 (or 188636 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 213213332 is about 14601.8263241281. The cubic root of 213213332 is about 597.4085754972.

Adding to 213213332 its reverse (233312312), we get a palindrome (446525644).

The spelling of 213213332 in words is "two hundred thirteen million, two hundred thirteen thousand, three hundred thirty-two".