99902221112 has 16 divisors (see below), whose sum is σ = 187326537840. Its totient is φ = 49948477696.

The previous prime is 99902221091. The next prime is 99902221123. The reversal of 99902221112 is 21112220999.

It is a happy number.

It is a super-2 number, since 2×99902221112² (a number of 23 digits) contains 22 as substring.

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, 162908 + ... + 475755.

It is an arithmetic number, because the mean of its divisors is an integer number (11707908615).

Almost surely, 2^99902221112 is an apocalyptic number.

It is an amenable number.

99902221112 is a deficient number, since it is larger than the sum of its proper divisors (87424316728).

99902221112 is a wasteful number, since it uses less digits than its factorization.

99902221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658222 (or 658218 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 99902221112 in words is "ninety-nine billion, nine hundred two million, two hundred twenty-one thousand, one hundred twelve".