212021011232 has 12 divisors (see below), whose sum is σ = 417416365926. Its totient is φ = 106010505600.

The previous prime is 212021011177. The next prime is 212021011259. The reversal of 212021011232 is 232110120212.

It can be written as a sum of positive squares in only one way, i.e., 173052672016 + 38968339216 = 415996^2 + 197404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212021011232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312828269 + ... + 3312828332.

Almost surely, 2^212021011232 is an apocalyptic number.

It is an amenable number.

212021011232 is a deficient number, since it is larger than the sum of its proper divisors (205395354694).

212021011232 is an equidigital number, since it uses as much as digits as its factorization.

212021011232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625656611 (or 6625656603 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212021011232 its reverse (232110120212), we get a palindrome (444131131444).

The spelling of 212021011232 in words is "two hundred twelve billion, twenty-one million, eleven thousand, two hundred thirty-two".