213120021232 has 20 divisors (see below), whose sum is σ = 413160024816. Its totient is φ = 106498079360.

The previous prime is 213120021223. The next prime is 213120021271. The reversal of 213120021232 is 232120021312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842308 + ... + 3897379.

Almost surely, 2^213120021232 is an apocalyptic number.

It is an amenable number.

213120021232 is a deficient number, since it is larger than the sum of its proper divisors (200040003584).

213120021232 is a wasteful number, since it uses less digits than its factorization.

213120021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741416 (or 7741410 counting only the distinct ones).

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

Adding to 213120021232 its reverse (232120021312), we get a palindrome (445240042544).

The spelling of 213120021232 in words is "two hundred thirteen billion, one hundred twenty million, twenty-one thousand, two hundred thirty-two".