202221221222201 has 4 divisors (see below), whose sum is σ = 202230563010432. Its totient is φ = 202211879433972.

The previous prime is 202221221222183. The next prime is 202221221222261. The reversal of 202221221222201 is 102222122122202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221221222201 is a prime.

It is a super-2 number, since 2×202221221222201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221221222261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4670861645 + ... + 4670904938.

It is an arithmetic number, because the mean of its divisors is an integer number (50557640752608).

Almost surely, 2^{202221221222201} is an apocalyptic number.

It is an amenable number.

202221221222201 is a deficient number, since it is larger than the sum of its proper divisors (9341788231).

202221221222201 is an equidigital number, since it uses as much as digits as its factorization.

202221221222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341788230.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 202221221222201 its reverse (102222122122202), we get a palindrome (304443343344403).

Subtracting from 202221221222201 its reverse (102222122122202), we obtain a palindrome (99999099099999).

The spelling of 202221221222201 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".