2002202202221 has 48 divisors (see below), whose sum is σ = 2311699026960. Its totient is φ = 1730004756480.

The previous prime is 2002202202211. The next prime is 2002202202293. The reversal of 2002202202221 is 1222022022002.

It can be written as a sum of positive squares in 24 ways, for example, as 573904729225 + 1428297472996 = 757565^2 + 1195114^2 .

It is not a de Polignac number, because 2002202202221 - 2²² = 2002198007917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002202202211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50936051 + ... + 50975343.

It is an arithmetic number, because the mean of its divisors is an integer number (48160396395).

Almost surely, 2^{2002202202221} is an apocalyptic number.

It is an amenable number.

2002202202221 is a deficient number, since it is larger than the sum of its proper divisors (309496824739).

2002202202221 is a wasteful number, since it uses less digits than its factorization.

2002202202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39666 (or 39653 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 2002202202221 its reverse (1222022022002), we get a palindrome (3224224224223).

The spelling of 2002202202221 in words is "two trillion, two billion, two hundred two million, two hundred two thousand, two hundred twenty-one".