121701924865 has 8 divisors (see below), whose sum is σ = 146054445120. Its totient is φ = 97353449712.

The previous prime is 121701924829. The next prime is 121701924901. The reversal of 121701924865 is 568429107121.

It is an interprime number because it is at equal distance from previous prime (121701924829) and next prime (121701924901).

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 121701924865 - 2¹⁷ = 121701793793 is a prime.

It is a super-2 number, since 2×121701924865² (a number of 23 digits) contains 22 as substring.

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, 944685 + ... + 1065754.

It is an arithmetic number, because the mean of its divisors is an integer number (18256805640).

It is a Proth number, since it is equal to 3627 ⋅ 2²⁵ + 1 and 3627 < 2²⁵.

Almost surely, 2^121701924865 is an apocalyptic number.

It is an amenable number.

121701924865 is a deficient number, since it is larger than the sum of its proper divisors (24352520255).

121701924865 is a wasteful number, since it uses less digits than its factorization.

121701924865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022551.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 121701924865 in words is "one hundred twenty-one billion, seven hundred one million, nine hundred twenty-four thousand, eight hundred sixty-five".