2201023202021 has 16 divisors (see below), whose sum is σ = 2516605597440. Its totient is φ = 1885728687360.

The previous prime is 2201023201987. The next prime is 2201023202039. The reversal of 2201023202021 is 1202023201022.

It is not a de Polignac number, because 2201023202021 - 2¹⁸ = 2201022939877 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 (2201023202221) 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, 238692191 + ... + 238701411.

It is an arithmetic number, because the mean of its divisors is an integer number (157287849840).

Almost surely, 2^{2201023202021} is an apocalyptic number.

It is an amenable number.

2201023202021 is a deficient number, since it is larger than the sum of its proper divisors (315582395419).

2201023202021 is an equidigital number, since it uses as much as digits as its factorization.

2201023202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21124.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2201023202021 its reverse (1202023201022), we get a palindrome (3403046403043).

Subtracting from 2201023202021 its reverse (1202023201022), we obtain a palindrome (999000000999).

The spelling of 2201023202021 in words is "two trillion, two hundred one billion, twenty-three million, two hundred two thousand, twenty-one".