121916012 has 12 divisors (see below), whose sum is σ = 214631760. Its totient is φ = 60592656.

The previous prime is 121916009. The next prime is 121916023. The reversal of 121916012 is 210619121.

It is a happy number.

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, 90587 + ... + 91922.

It is an arithmetic number, because the mean of its divisors is an integer number (17885980).

Almost surely, 2^121916012 is an apocalyptic number.

It is an amenable number.

121916012 is a deficient number, since it is larger than the sum of its proper divisors (92715748).

121916012 is a wasteful number, since it uses less digits than its factorization.

121916012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182680 (or 182678 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 121916012 is about 11041.5584045007. The cubic root of 121916012 is about 495.8537278965.

The spelling of 121916012 in words is "one hundred twenty-one million, nine hundred sixteen thousand, twelve".