212100232 has 8 divisors (see below), whose sum is σ = 397687950. Its totient is φ = 106050112.

The previous prime is 212100193. The next prime is 212100241. The reversal of 212100232 is 232001212.

It can be written as a sum of positive squares in only one way, i.e., 147039876 + 65060356 = 12126^2 + 8066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13256257 + ... + 13256272.

Almost surely, 2^212100232 is an apocalyptic number.

It is an amenable number.

212100232 is a deficient number, since it is larger than the sum of its proper divisors (185587718).

212100232 is a wasteful number, since it uses less digits than its factorization.

212100232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26512535 (or 26512531 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212100232 is about 14563.6613528329. The cubic root of 212100232 is about 596.3671521242.

Adding to 212100232 its reverse (232001212), we get a palindrome (444101444).

The spelling of 212100232 in words is "two hundred twelve million, one hundred thousand, two hundred thirty-two".