213072212 has 12 divisors (see below), whose sum is σ = 373935156. Its totient is φ = 106233600.

The previous prime is 213072191. The next prime is 213072217. The reversal of 213072212 is 212270312.

213072212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 121793296 + 91278916 = 11036^2 + 9554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213072217) 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, 74039 + ... + 76862.

It is an arithmetic number, because the mean of its divisors is an integer number (31161263).

Almost surely, 2^213072212 is an apocalyptic number.

It is an amenable number.

213072212 is a deficient number, since it is larger than the sum of its proper divisors (160862944).

213072212 is a wasteful number, since it uses less digits than its factorization.

213072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151258 (or 151256 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 213072212 is about 14596.9932520365. The cubic root of 213072212 is about 597.2767436769.

The spelling of 213072212 in words is "two hundred thirteen million, seventy-two thousand, two hundred twelve".