2202153115221 has 24 divisors (see below), whose sum is σ = 3185387106720. Its totient is φ = 1466026956576.

The previous prime is 2202153115219. The next prime is 2202153115223. The reversal of 2202153115221 is 1225113512022.

2202153115221 is a `hidden beast` number, since 220 + 215 + 3 + 1 + 1 + 5 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (2202153115219) and next prime (2202153115223).

It is not a de Polignac number, because 2202153115221 - 2¹ = 2202153115219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202153115223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18380850 + ... + 18500268.

It is an arithmetic number, because the mean of its divisors is an integer number (132724462780).

Almost surely, 2^{2202153115221} is an apocalyptic number.

It is an amenable number.

2202153115221 is a deficient number, since it is larger than the sum of its proper divisors (983233991499).

2202153115221 is a wasteful number, since it uses less digits than its factorization.

2202153115221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122305 (or 122302 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 2202153115221 its reverse (1225113512022), we get a palindrome (3427266627243).

The spelling of 2202153115221 in words is "two trillion, two hundred two billion, one hundred fifty-three million, one hundred fifteen thousand, two hundred twenty-one".