121255412 has 24 divisors (see below), whose sum is σ = 214664520. Its totient is φ = 59927040.

The previous prime is 121255391. The next prime is 121255487. The reversal of 121255412 is 214552121.

It can be written as a sum of positive squares in 4 ways, for example, as 41938576 + 79316836 = 6476^2 + 8906^2 .

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, 223862 + ... + 224402.

It is an arithmetic number, because the mean of its divisors is an integer number (8944355).

Almost surely, 2^121255412 is an apocalyptic number.

It is an amenable number.

121255412 is a deficient number, since it is larger than the sum of its proper divisors (93409108).

121255412 is a wasteful number, since it uses less digits than its factorization.

121255412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 121255412 is about 11011.6035162913. The cubic root of 121255412 is about 494.9565135419.

The spelling of 121255412 in words is "one hundred twenty-one million, two hundred fifty-five thousand, four hundred twelve".