212192212 has 6 divisors (see below), whose sum is σ = 371336378. Its totient is φ = 106096104.

The previous prime is 212192207. The next prime is 212192219. The reversal of 212192212 is 212291212.

It can be written as a sum of positive squares in only one way, i.e., 194769936 + 17422276 = 13956^2 + 4174^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212192219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26524023 + ... + 26524030.

Almost surely, 2^212192212 is an apocalyptic number.

It is an amenable number.

212192212 is a deficient number, since it is larger than the sum of its proper divisors (159144166).

212192212 is a wasteful number, since it uses less digits than its factorization.

212192212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53048057 (or 53048055 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 212192212 is about 14566.8188702956. The cubic root of 212192212 is about 596.4533471002.

Multiplying 212192212 by its sum of digits (22), we get a palindrome (4668228664).

The spelling of 212192212 in words is "two hundred twelve million, one hundred ninety-two thousand, two hundred twelve".