900699417122 has 6 divisors (see below), whose sum is σ = 1351051138929. Its totient is φ = 450349037480.

The previous prime is 900699417109. The next prime is 900699417127. The reversal of 900699417122 is 221714996009.

It can be written as a sum of positive squares in 2 ways, for example, as 795594425521 + 105104991601 = 891961^2 + 324199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=671081.

It is a super-2 number, since 2×900699417122² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900699417127) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1006622 + ... + 1677702.

Almost surely, 2^900699417122 is an apocalyptic number.

900699417122 is a deficient number, since it is larger than the sum of its proper divisors (450351721807).

900699417122 is an frugal number, since it uses more digits than its factorization.

900699417122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342164 (or 671083 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

Multiplying 900699417122 by its sum of digits (50), we get a square (45034970856100 = 6710810²).

The spelling of 900699417122 in words is "nine hundred billion, six hundred ninety-nine million, four hundred seventeen thousand, one hundred twenty-two".