121072412 has 6 divisors (see below), whose sum is σ = 211876728. Its totient is φ = 60536204.

The previous prime is 121072411. The next prime is 121072421. The reversal of 121072412 is 214270121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121072411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15134048 + ... + 15134055.

It is an arithmetic number, because the mean of its divisors is an integer number (35312788).

Almost surely, 2^121072412 is an apocalyptic number.

It is an amenable number.

121072412 is a deficient number, since it is larger than the sum of its proper divisors (90804316).

121072412 is a wasteful number, since it uses less digits than its factorization.

121072412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30268107 (or 30268105 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 121072412 is about 11003.2909622531. The cubic root of 121072412 is about 494.7073902373.

The spelling of 121072412 in words is "one hundred twenty-one million, seventy-two thousand, four hundred twelve".