900122110210021 has 4 divisors (see below), whose sum is σ = 900329559421600. Its totient is φ = 899914660998444.

The previous prime is 900122110209943. The next prime is 900122110210111. The reversal of 900122110210021 is 120012011221009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 900122110210021 - 2²³ = 900122101821413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 900122110209974 and 900122110210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900122110210121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103724599281 + ... + 103724607958.

It is an arithmetic number, because the mean of its divisors is an integer number (225082389855400).

Almost surely, 2^{900122110210021} is an apocalyptic number.

It is an amenable number.

900122110210021 is a deficient number, since it is larger than the sum of its proper divisors (207449211579).

900122110210021 is a wasteful number, since it uses less digits than its factorization.

900122110210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207449211578.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 900122110210021 in words is "nine hundred trillion, one hundred twenty-two billion, one hundred ten million, two hundred ten thousand, twenty-one".