900020022011 has 4 divisors (see below), whose sum is σ = 981840024024. Its totient is φ = 818200020000.

The previous prime is 900020022007. The next prime is 900020022043. The reversal of 900020022011 is 110220020009.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 900020022011 - 2² = 900020022007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900020022611) 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, 40910000990 + ... + 40910001011.

It is an arithmetic number, because the mean of its divisors is an integer number (245460006006).

Almost surely, 2^900020022011 is an apocalyptic number.

900020022011 is a deficient number, since it is larger than the sum of its proper divisors (81820002013).

900020022011 is a wasteful number, since it uses less digits than its factorization.

900020022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81820002012.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 900020022011 in words is "nine hundred billion, twenty million, twenty-two thousand, eleven".