212213132 has 12 divisors (see below), whose sum is σ = 373739520. Its totient is φ = 105430416.

The previous prime is 212213129. The next prime is 212213143. The reversal of 212213132 is 231312212.

It is a self number, because there is not a number n which added to its sum of digits gives 212213132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168332 + ... + 169587.

It is an arithmetic number, because the mean of its divisors is an integer number (31144960).

Almost surely, 2^212213132 is an apocalyptic number.

It is an amenable number.

212213132 is a deficient number, since it is larger than the sum of its proper divisors (161526388).

212213132 is a wasteful number, since it uses less digits than its factorization.

212213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338080 (or 338078 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 212213132 is about 14567.5369228981. The cubic root of 212213132 is about 596.4729478730.

Adding to 212213132 its reverse (231312212), we get a palindrome (443525344).

The spelling of 212213132 in words is "two hundred twelve million, two hundred thirteen thousand, one hundred thirty-two".