121022210231312 has 60 divisors (see below), whose sum is σ = 257481081656064. Its totient is φ = 55069694709120.

The previous prime is 121022210231243. The next prime is 121022210231317. The reversal of 121022210231312 is 213132012220121.

It is not an unprimeable number, because it can be changed into a prime (121022210231317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314996288 + ... + 315380255.

Almost surely, 2^{121022210231312} is an apocalyptic number.

It is an amenable number.

121022210231312 is an abundant number, since it is smaller than the sum of its proper divisors (136458871424752).

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

121022210231312 is a wasteful number, since it uses less digits than its factorization.

121022210231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630376648 (or 630376629 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121022210231312 its reverse (213132012220121), we get a palindrome (334154222451433).

The spelling of 121022210231312 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred ten million, two hundred thirty-one thousand, three hundred twelve".