121213222021232 has 40 divisors (see below), whose sum is σ = 261651752001792. Its totient is φ = 53924644222400.

The previous prime is 121213222021219. The next prime is 121213222021253. The reversal of 121213222021232 is 232120222312121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7326709694 + ... + 7326726237.

Almost surely, 2^{121213222021232} is an apocalyptic number.

It is an amenable number.

121213222021232 is an abundant number, since it is smaller than the sum of its proper divisors (140438529980560).

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

121213222021232 is a wasteful number, since it uses less digits than its factorization.

121213222021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14653435997 (or 14653435991 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121213222021232 its reverse (232120222312121), we get a palindrome (353333444333353).

The spelling of 121213222021232 in words is "one hundred twenty-one trillion, two hundred thirteen billion, two hundred twenty-two million, twenty-one thousand, two hundred thirty-two".