121935801064 has 96 divisors (see below), whose sum is σ = 302749617600. Its totient is φ = 45441876480.

The previous prime is 121935801049. The next prime is 121935801083. The reversal of 121935801064 is 460108539121.

It is a super-2 number, since 2×121935801064² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515569 + ... + 713920.

It is an arithmetic number, because the mean of its divisors is an integer number (3153641850).

Almost surely, 2^121935801064 is an apocalyptic number.

121935801064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121935801064 is an abundant number, since it is smaller than the sum of its proper divisors (180813816536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121935801064 is a wasteful number, since it uses less digits than its factorization.

121935801064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229543 (or 1229532 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 121935801064 in words is "one hundred twenty-one billion, nine hundred thirty-five million, eight hundred one thousand, sixty-four".