121772076 has 12 divisors (see below), whose sum is σ = 284134872. Its totient is φ = 40590688.

The previous prime is 121772023. The next prime is 121772117. The reversal of 121772076 is 670277121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5073825 + ... + 5073848.

It is an arithmetic number, because the mean of its divisors is an integer number (23677906).

Almost surely, 2^121772076 is an apocalyptic number.

It is an amenable number.

121772076 is an abundant number, since it is smaller than the sum of its proper divisors (162362796).

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

121772076 is a wasteful number, since it uses less digits than its factorization.

121772076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147680 (or 10147678 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 121772076 is about 11035.0385590627. The cubic root of 121772076 is about 495.6585134294.

The spelling of 121772076 in words is "one hundred twenty-one million, seven hundred seventy-two thousand, seventy-six".