2202121321221 has 8 divisors (see below), whose sum is σ = 2942701099200. Its totient is φ = 1464811212032.

The previous prime is 2202121321201. The next prime is 2202121321229. The reversal of 2202121321221 is 1221231212022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2202121321221 - 2⁷ = 2202121321093 is a prime.

It is a super-2 number, since 2×2202121321221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202121321229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817415625 + ... + 817418318.

It is an arithmetic number, because the mean of its divisors is an integer number (367837637400).

Almost surely, 2^{2202121321221} is an apocalyptic number.

It is an amenable number.

2202121321221 is a deficient number, since it is larger than the sum of its proper divisors (740579777979).

2202121321221 is a wasteful number, since it uses less digits than its factorization.

2202121321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634834395.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2202121321221 its reverse (1221231212022), we get a palindrome (3423352533243).

The spelling of 2202121321221 in words is "two trillion, two hundred two billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred twenty-one".