22201011021 has 16 divisors (see below), whose sum is σ = 33861155328. Its totient is φ = 12674650800.

The previous prime is 22201010989. The next prime is 22201011029. The reversal of 22201011021 is 12011010222.

It is not a de Polignac number, because 22201011021 - 2⁵ = 22201010989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22201010988 and 22201011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201011029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461595 + ... + 507416.

It is an arithmetic number, because the mean of its divisors is an integer number (2116322208).

Almost surely, 2^22201011021 is an apocalyptic number.

22201011021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22201011021 is a deficient number, since it is larger than the sum of its proper divisors (11660144307).

22201011021 is a wasteful number, since it uses less digits than its factorization.

22201011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970112.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22201011021 its reverse (12011010222), we get a palindrome (34212021243).

The spelling of 22201011021 in words is "twenty-two billion, two hundred one million, eleven thousand, twenty-one".