99200424120021 has 192 divisors, whose sum is σ = 176931385344000. Its totient is φ = 54714924472320.

The previous prime is 99200424119921. The next prime is 99200424120037. The reversal of 99200424120021 is 12002142400299.

99200424120021 is a `hidden beast` number, since 9 + 9 + 2 + 0 + 0 + 424 + 1 + 200 + 21 = 666.

It is not a de Polignac number, because 99200424120021 - 2⁹ = 99200424119509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99200424120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 31622702965 + ... + 31622706101.

It is an arithmetic number, because the mean of its divisors is an integer number (921517632000).

Almost surely, 2^{99200424120021} is an apocalyptic number.

It is an amenable number.

99200424120021 is a deficient number, since it is larger than the sum of its proper divisors (77730961223979).

99200424120021 is a wasteful number, since it uses less digits than its factorization.

99200424120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949 (or 4936 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 99200424120021 in words is "ninety-nine trillion, two hundred billion, four hundred twenty-four million, one hundred twenty thousand, twenty-one".