125999999202 has 64 divisors (see below), whose sum is σ = 317118219264. Its totient is φ = 32421397440.

The previous prime is 125999999161. The next prime is 125999999227. The reversal of 125999999202 is 202999999521.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1224993 + ... + 1323860.

It is an arithmetic number, because the mean of its divisors is an integer number (4954972176).

Almost surely, 2^125999999202 is an apocalyptic number.

125999999202 is an abundant number, since it is smaller than the sum of its proper divisors (191118220062).

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

125999999202 is a wasteful number, since it uses less digits than its factorization.

125999999202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548983.

The product of its (nonzero) digits is 21257640, while the sum is 66.

The spelling of 125999999202 in words is "one hundred twenty-five billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred two".