124645505212 has 12 divisors (see below), whose sum is σ = 229610141320. Its totient is φ = 59042607696.

The previous prime is 124645505207. The next prime is 124645505227. The reversal of 124645505212 is 212505546421.

It is a congruent 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, 820036143 + ... + 820036294.

Almost surely, 2^124645505212 is an apocalyptic number.

It is an amenable number.

124645505212 is a deficient number, since it is larger than the sum of its proper divisors (104964636108).

124645505212 is a wasteful number, since it uses less digits than its factorization.

124645505212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640072460 (or 1640072458 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 124645505212 in words is "one hundred twenty-four billion, six hundred forty-five million, five hundred five thousand, two hundred twelve".