121607712 has 36 divisors (see below), whose sum is σ = 345822750. Its totient is φ = 40535808.

The previous prime is 121607711. The next prime is 121607713. The reversal of 121607712 is 217706121.

It is an interprime number because it is at equal distance from previous prime (121607711) and next prime (121607713).

It can be written as a sum of positive squares in only one way, i.e., 109746576 + 11861136 = 10476^2 + 3444^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (121607711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210837 + ... + 211412.

Almost surely, 2^121607712 is an apocalyptic number.

121607712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121607712 is an abundant number, since it is smaller than the sum of its proper divisors (224215038).

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

121607712 is a wasteful number, since it uses less digits than its factorization.

121607712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422265 (or 422254 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 121607712 is about 11027.5886756806. The cubic root of 121607712 is about 495.4354050876.

The spelling of 121607712 in words is "one hundred twenty-one million, six hundred seven thousand, seven hundred twelve".