2204101042021 has 16 divisors (see below), whose sum is σ = 2275629904240. Its totient is φ = 2133227404800.

The previous prime is 2204101041929. The next prime is 2204101042027. The reversal of 2204101042021 is 1202401014022.

It can be written as a sum of positive squares in 8 ways, for example, as 710606850625 + 1493494191396 = 842975^2 + 1222086^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204101042021 - 2¹³ = 2204101033829 is a prime.

It is a super-2 number, since 2×2204101042021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2204101042021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204101042027) 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, 5980735 + ... + 6338563.

It is an arithmetic number, because the mean of its divisors is an integer number (142226869015).

Almost surely, 2^{2204101042021} is an apocalyptic number.

It is an amenable number.

2204101042021 is a deficient number, since it is larger than the sum of its proper divisors (71528862219).

2204101042021 is a wasteful number, since it uses less digits than its factorization.

2204101042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358744.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2204101042021 its reverse (1202401014022), we get a palindrome (3406502056043).

The spelling of 2204101042021 in words is "two trillion, two hundred four billion, one hundred one million, forty-two thousand, twenty-one".