121972074294 has 48 divisors (see below), whose sum is σ = 284364518400. Its totient is φ = 34776369936.

The previous prime is 121972074293. The next prime is 121972074319. The reversal of 121972074294 is 492470279121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121972074293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292234 + ... + 573885.

It is an arithmetic number, because the mean of its divisors is an integer number (5924260800).

Almost surely, 2^121972074294 is an apocalyptic number.

121972074294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121972074294 is an abundant number, since it is smaller than the sum of its proper divisors (162392444106).

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

121972074294 is a wasteful number, since it uses less digits than its factorization.

121972074294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866617 (or 866610 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 121972074294 in words is "one hundred twenty-one billion, nine hundred seventy-two million, seventy-four thousand, two hundred ninety-four".