121502405412 has 36 divisors (see below), whose sum is σ = 310112944960. Its totient is φ = 40107588912.

The previous prime is 121502405411. The next prime is 121502405429. The reversal of 121502405412 is 214504205121.

It is a happy number.

121502405412 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 0 + 240 + 5 + 412 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (121502405411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16380112 + ... + 16387527.

Almost surely, 2^121502405412 is an apocalyptic number.

121502405412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121502405412 is an abundant number, since it is smaller than the sum of its proper divisors (188610539548).

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

121502405412 is a wasteful number, since it uses less digits than its factorization.

121502405412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32767752 (or 32767747 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 121502405412 in words is "one hundred twenty-one billion, five hundred two million, four hundred five thousand, four hundred twelve".