121213104122399 has 8 divisors (see below), whose sum is σ = 124150899478320. Its totient is φ = 118308504194496.

The previous prime is 121213104122381. The next prime is 121213104122413. The reversal of 121213104122399 is 993221401312121.

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 121213104122399 - 2²⁰ = 121213103073823 is a prime.

It is a super-2 number, since 2×121213104122399² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213104122699) 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, 8298849614 + ... + 8298864219.

It is an arithmetic number, because the mean of its divisors is an integer number (15518862434790).

Almost surely, 2^{121213104122399} is an apocalyptic number.

121213104122399 is a deficient number, since it is larger than the sum of its proper divisors (2937795355921).

121213104122399 is a wasteful number, since it uses less digits than its factorization.

121213104122399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16597714009.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 121213104122399 in words is "one hundred twenty-one trillion, two hundred thirteen billion, one hundred four million, one hundred twenty-two thousand, three hundred ninety-nine".