990100012122112 has 30 divisors (see below), whose sum is σ = 1980139593368048. Its totient is φ = 495050006052864.

The previous prime is 990100012122061. The next prime is 990100012122119. The reversal of 990100012122112 is 211221210001099.

It is a super-4 number, since 4×990100012122112⁴ (a number of 61 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990100012122119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30215438088 + ... + 30215470855.

Almost surely, 2^{990100012122112} is an apocalyptic number.

It is an amenable number.

990100012122112 is a deficient number, since it is larger than the sum of its proper divisors (990039581245936).

990100012122112 is an frugal number, since it uses more digits than its factorization.

990100012122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60430908971 (or 60430908945 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 990100012122112 in words is "nine hundred ninety trillion, one hundred billion, twelve million, one hundred twenty-two thousand, one hundred twelve".