121401224432 has 40 divisors (see below), whose sum is σ = 262159002000. Its totient is φ = 54123144192.

The previous prime is 121401224429. The next prime is 121401224443. The reversal of 121401224432 is 234422104121.

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, 11740307 + ... + 11750642.

It is an arithmetic number, because the mean of its divisors is an integer number (6553975050).

Almost surely, 2^121401224432 is an apocalyptic number.

It is an amenable number.

121401224432 is an abundant number, since it is smaller than the sum of its proper divisors (140757777568).

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

121401224432 is a wasteful number, since it uses less digits than its factorization.

121401224432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23490993 (or 23490987 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121401224432 its reverse (234422104121), we get a palindrome (355823328553).

The spelling of 121401224432 in words is "one hundred twenty-one billion, four hundred one million, two hundred twenty-four thousand, four hundred thirty-two".