121252238912 has 42 divisors (see below), whose sum is σ = 279893169702. Its totient is φ = 51965243904.

The previous prime is 121252238911. The next prime is 121252238941. The reversal of 121252238912 is 219832252121.

It can be written as a sum of positive squares in only one way, i.e., 90803384896 + 30448854016 = 301336^2 + 174496^2 .

It is not an unprimeable number, because it can be changed into a prime (121252238911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19329173 + ... + 19335444.

Almost surely, 2^121252238912 is an apocalyptic number.

It is an amenable number.

121252238912 is an abundant number, since it is smaller than the sum of its proper divisors (158640930790).

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

121252238912 is an equidigital number, since it uses as much as digits as its factorization.

121252238912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38664643 (or 38664626 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The spelling of 121252238912 in words is "one hundred twenty-one billion, two hundred fifty-two million, two hundred thirty-eight thousand, nine hundred twelve".