22201002221021 has 8 divisors (see below), whose sum is σ = 24080777175840. Its totient is φ = 20345799488112.

The previous prime is 22201002220937. The next prime is 22201002221171. The reversal of 22201002221021 is 12012220010222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22201002221021 - 2²² = 22200998026717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201002221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6143053595 + ... + 6143057208.

It is an arithmetic number, because the mean of its divisors is an integer number (3010097146980).

Almost surely, 2^{22201002221021} is an apocalyptic number.

It is an amenable number.

22201002221021 is a deficient number, since it is larger than the sum of its proper divisors (1879774954819).

22201002221021 is a wasteful number, since it uses less digits than its factorization.

22201002221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286110955.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22201002221021 its reverse (12012220010222), we get a palindrome (34213222231243).

The spelling of 22201002221021 in words is "twenty-two trillion, two hundred one billion, two million, two hundred twenty-one thousand, twenty-one".