213122001232 has 40 divisors (see below), whose sum is σ = 474918857216. Its totient is φ = 90756222336.

The previous prime is 213122001223. The next prime is 213122001247. The reversal of 213122001232 is 232100221312.

213122001232 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6042528 + ... + 6077695.

Almost surely, 2^213122001232 is an apocalyptic number.

It is an amenable number.

213122001232 is an abundant number, since it is smaller than the sum of its proper divisors (261796855984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213122001232 is a wasteful number, since it uses less digits than its factorization.

213122001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120395 (or 12120389 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213122001232 its reverse (232100221312), we get a palindrome (445222222544).

The spelling of 213122001232 in words is "two hundred thirteen billion, one hundred twenty-two million, one thousand, two hundred thirty-two".