121273012 has 24 divisors (see below), whose sum is σ = 250911360. Its totient is φ = 50181600.

The previous prime is 121273007. The next prime is 121273021. The reversal of 121273012 is 210372121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73864 + ... + 75487.

It is an arithmetic number, because the mean of its divisors is an integer number (10454640).

Almost surely, 2^121273012 is an apocalyptic number.

It is an amenable number.

121273012 is an abundant number, since it is smaller than the sum of its proper divisors (129638348).

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

121273012 is a wasteful number, since it uses less digits than its factorization.

121273012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149391 (or 149389 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121273012 is about 11012.4026442916. The cubic root of 121273012 is about 494.9804597259.

The spelling of 121273012 in words is "one hundred twenty-one million, two hundred seventy-three thousand, twelve".