202220311201221 has 64 divisors (see below), whose sum is σ = 276428630016000. Its totient is φ = 131464266286080.

The previous prime is 202220311201211. The next prime is 202220311201229. The reversal of 202220311201221 is 122102113022202.

It is not a de Polignac number, because 202220311201221 - 2⁶ = 202220311201157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220311201229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8983166356 + ... + 8983188866.

It is an arithmetic number, because the mean of its divisors is an integer number (4319197344000).

Almost surely, 2^{202220311201221} is an apocalyptic number.

It is an amenable number.

202220311201221 is a deficient number, since it is larger than the sum of its proper divisors (74208318814779).

202220311201221 is a wasteful number, since it uses less digits than its factorization.

202220311201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23874.

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

Adding to 202220311201221 its reverse (122102113022202), we get a palindrome (324322424223423).

The spelling of 202220311201221 in words is "two hundred two trillion, two hundred twenty billion, three hundred eleven million, two hundred one thousand, two hundred twenty-one".