121504722912 has 72 divisors (see below), whose sum is σ = 348883791984. Its totient is φ = 40108345344.

The previous prime is 121504722877. The next prime is 121504722919. The reversal of 121504722912 is 219227405121.

It is a happy number.

121504722912 is a `hidden beast` number, since 1 + 2 + 150 + 472 + 29 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121504722919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2018353 + ... + 2077680.

It is an arithmetic number, because the mean of its divisors is an integer number (4845608222).

Almost surely, 2^121504722912 is an apocalyptic number.

121504722912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121504722912 is an abundant number, since it is smaller than the sum of its proper divisors (227379069072).

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

121504722912 is a wasteful number, since it uses less digits than its factorization.

121504722912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096152 (or 4096141 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 121504722912 in words is "one hundred twenty-one billion, five hundred four million, seven hundred twenty-two thousand, nine hundred twelve".