121922768685 has 8 divisors (see below), whose sum is σ = 195076429920. Its totient is φ = 65025476624.

The previous prime is 121922768677. The next prime is 121922768731. The reversal of 121922768685 is 586867229121.

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 121922768685 - 2³ = 121922768677 is a prime.

It is a congruent number.

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, 4064092275 + ... + 4064092304.

It is an arithmetic number, because the mean of its divisors is an integer number (24384553740).

Almost surely, 2^121922768685 is an apocalyptic number.

121922768685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121922768685 is a deficient number, since it is larger than the sum of its proper divisors (73153661235).

121922768685 is an equidigital number, since it uses as much as digits as its factorization.

121922768685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8128184587.

The product of its digits is 5806080, while the sum is 57.

The spelling of 121922768685 in words is "one hundred twenty-one billion, nine hundred twenty-two million, seven hundred sixty-eight thousand, six hundred eighty-five".