121212110976 has 128 divisors (see below), whose sum is σ = 362570342400. Its totient is φ = 35546035200.

The previous prime is 121212110947. The next prime is 121212110977. The reversal of 121212110976 is 679011212121.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (121212110977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331896 + ... + 593783.

It is an arithmetic number, because the mean of its divisors is an integer number (2832580800).

Almost surely, 2^121212110976 is an apocalyptic number.

121212110976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121212110976 is an abundant number, since it is smaller than the sum of its proper divisors (241358231424).

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

121212110976 is a wasteful number, since it uses less digits than its factorization.

121212110976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925738 (or 925726 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 33.

The spelling of 121212110976 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, nine hundred seventy-six".