22112020222221 has 4 divisors (see below), whose sum is σ = 29482693629632. Its totient is φ = 14741346814812.

The previous prime is 22112020222219. The next prime is 22112020222267. The reversal of 22112020222221 is 12222202021122.

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 not a de Polignac number, because 22112020222221 - 2¹ = 22112020222219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112020222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685336703701 + ... + 3685336703706.

It is an arithmetic number, because the mean of its divisors is an integer number (7370673407408).

Almost surely, 2^{22112020222221} is an apocalyptic number.

It is an amenable number.

22112020222221 is a deficient number, since it is larger than the sum of its proper divisors (7370673407411).

22112020222221 is an equidigital number, since it uses as much as digits as its factorization.

22112020222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370673407410.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22112020222221 its reverse (12222202021122), we get a palindrome (34334222243343).

The spelling of 22112020222221 in words is "twenty-two trillion, one hundred twelve billion, twenty million, two hundred twenty-two thousand, two hundred twenty-one".