121397760001 has 8 divisors (see below), whose sum is σ = 139192222400. Its totient is φ = 103716278928.

The previous prime is 121397759999. The next prime is 121397760007. The reversal of 121397760001 is 100067793121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121397760001 - 2¹ = 121397759999 is a prime.

It is a super-2 number, since 2×121397760001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121397760007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28243026 + ... + 28247323.

It is an arithmetic number, because the mean of its divisors is an integer number (17399027800).

Almost surely, 2^121397760001 is an apocalyptic number.

It is an amenable number.

121397760001 is a deficient number, since it is larger than the sum of its proper divisors (17794462399).

121397760001 is an equidigital number, since it uses as much as digits as its factorization.

121397760001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56490663.

The product of its (nonzero) digits is 15876, while the sum is 37.

The spelling of 121397760001 in words is "one hundred twenty-one billion, three hundred ninety-seven million, seven hundred sixty thousand, one".