121388726706199 has 8 divisors (see below), whose sum is σ = 121470159361568. Its totient is φ = 121307302127520.

The previous prime is 121388726706179. The next prime is 121388726706217. The reversal of 121388726706199 is 991607627883121.

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 121388726706199 - 2²³ = 121388718317591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121388726706179) 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, 28201534 + ... + 32219620.

It is an arithmetic number, because the mean of its divisors is an integer number (15183769920196).

Almost surely, 2^{121388726706199} is an apocalyptic number.

121388726706199 is a deficient number, since it is larger than the sum of its proper divisors (81432655369).

121388726706199 is a wasteful number, since it uses less digits than its factorization.

121388726706199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038345.

The product of its (nonzero) digits is 109734912, while the sum is 70.

The spelling of 121388726706199 in words is "one hundred twenty-one trillion, three hundred eighty-eight billion, seven hundred twenty-six million, seven hundred six thousand, one hundred ninety-nine".