202222201112221 has 4 divisors (see below), whose sum is σ = 202222318394944. Its totient is φ = 202222083829500.

The previous prime is 202222201112167. The next prime is 202222201112257. The reversal of 202222201112221 is 122211102222202.

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 not a de Polignac number, because 202222201112221 - 2¹¹ = 202222201110173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222201112192 and 202222201112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222201112291) 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, 56015835 + ... + 59516536.

It is an arithmetic number, because the mean of its divisors is an integer number (50555579598736).

Almost surely, 2^{202222201112221} is an apocalyptic number.

It is an amenable number.

202222201112221 is a deficient number, since it is larger than the sum of its proper divisors (117282723).

202222201112221 is a wasteful number, since it uses less digits than its factorization.

202222201112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117282722.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202222201112221 its reverse (122211102222202), we get a palindrome (324433303334423).

The spelling of 202222201112221 in words is "two hundred two trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred twenty-one".