99920023023212 has 48 divisors (see below), whose sum is σ = 199972548810048. Its totient is φ = 42794476035840.

The previous prime is 99920023023203. The next prime is 99920023023253. The reversal of 99920023023212 is 21232032002999.

It is a super-2 number, since 2×99920023023212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425011978 + ... + 1425082094.

It is an arithmetic number, because the mean of its divisors is an integer number (4166094766876).

Almost surely, 2^{99920023023212} is an apocalyptic number.

It is an amenable number.

99920023023212 is an abundant number, since it is smaller than the sum of its proper divisors (100052525786836).

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

99920023023212 is a wasteful number, since it uses less digits than its factorization.

99920023023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103146 (or 103144 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 99920023023212 in words is "ninety-nine trillion, nine hundred twenty billion, twenty-three million, twenty-three thousand, two hundred twelve".