2201022021021 has 4 divisors (see below), whose sum is σ = 2934696028032. Its totient is φ = 1467348014012.

The previous prime is 2201022021019. The next prime is 2201022021041. The reversal of 2201022021021 is 1201202201022.

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 2201022021021 - 2¹ = 2201022021019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201022021041) 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, 366837003501 + ... + 366837003506.

It is an arithmetic number, because the mean of its divisors is an integer number (733674007008).

Almost surely, 2^{2201022021021} is an apocalyptic number.

It is an amenable number.

2201022021021 is a deficient number, since it is larger than the sum of its proper divisors (733674007011).

2201022021021 is an equidigital number, since it uses as much as digits as its factorization.

2201022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733674007010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2201022021021 its reverse (1201202201022), we get a palindrome (3402224222043).

The spelling of 2201022021021 in words is "two trillion, two hundred one billion, twenty-two million, twenty-one thousand, twenty-one".