202220112222091 has 4 divisors (see below), whose sum is σ = 203267884824472. Its totient is φ = 201172339619712.

The previous prime is 202220112222043. The next prime is 202220112222119. The reversal of 202220112222091 is 190222211022202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202220112222091 - 2⁹ = 202220112221579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220112222991) 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, 523886300901 + ... + 523886301286.

It is an arithmetic number, because the mean of its divisors is an integer number (50816971206118).

Almost surely, 2^{202220112222091} is an apocalyptic number.

202220112222091 is a deficient number, since it is larger than the sum of its proper divisors (1047772602381).

202220112222091 is a wasteful number, since it uses less digits than its factorization.

202220112222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047772602380.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 202220112222091 its reverse (190222211022202), we get a palindrome (392442323244293).

The spelling of 202220112222091 in words is "two hundred two trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty-two thousand, ninety-one".