99922512501 has 144 divisors (see below), whose sum is σ = 181780080768. Its totient is φ = 52541798400.

The previous prime is 99922512479. The next prime is 99922512511. The reversal of 99922512501 is 10521522999.

99922512501 is a `hidden beast` number, since 9 + 9 + 92 + 2 + 51 + 2 + 501 = 666.

It is not a de Polignac number, because 99922512501 - 2¹⁰ = 99922511477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99922512511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 69728881 + ... + 69730313.

It is an arithmetic number, because the mean of its divisors is an integer number (1262361672).

Almost surely, 2^99922512501 is an apocalyptic number.

It is an amenable number.

99922512501 is a deficient number, since it is larger than the sum of its proper divisors (81857568267).

99922512501 is a wasteful number, since it uses less digits than its factorization.

99922512501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 99922512501 in words is "ninety-nine billion, nine hundred twenty-two million, five hundred twelve thousand, five hundred one".