212155150 has 24 divisors (see below), whose sum is σ = 401302440. Its totient is φ = 83422560.

The previous prime is 212155123. The next prime is 212155183. The reversal of 212155150 is 51551212.

It is a happy number.

212155150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33009 + ... + 38908.

It is an arithmetic number, because the mean of its divisors is an integer number (16720935).

Almost surely, 2^212155150 is an apocalyptic number.

212155150 is a deficient number, since it is larger than the sum of its proper divisors (189147290).

212155150 is a wasteful number, since it uses less digits than its factorization.

212155150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71988 (or 71983 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 212155150 is about 14565.5466770046. The cubic root of 212155150 is about 596.4186190882.

The spelling of 212155150 in words is "two hundred twelve million, one hundred fifty-five thousand, one hundred fifty".