121551251332 has 24 divisors (see below), whose sum is σ = 243122571776. Its totient is φ = 52089092928.

The previous prime is 121551251293. The next prime is 121551251389. The reversal of 121551251332 is 233152155121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121551251294 and 121551251303.

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, 178573 + ... + 524395.

Almost surely, 2^121551251332 is an apocalyptic number.

It is an amenable number.

121551251332 is an abundant number, since it is smaller than the sum of its proper divisors (121571320444).

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

121551251332 is a wasteful number, since it uses less digits than its factorization.

121551251332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358387 (or 358385 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The spelling of 121551251332 in words is "one hundred twenty-one billion, five hundred fifty-one million, two hundred fifty-one thousand, three hundred thirty-two".