22112020112221 has 16 divisors (see below), whose sum is σ = 23882082638400. Its totient is φ = 20351895782400.

The previous prime is 22112020112201. The next prime is 22112020112257. The reversal of 22112020112221 is 12221102021122.

It is not a de Polignac number, because 22112020112221 - 2⁷ = 22112020112093 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 (22112020112201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7379046 + ... + 9933496.

It is an arithmetic number, because the mean of its divisors is an integer number (1492630164900).

Almost surely, 2^{22112020112221} is an apocalyptic number.

It is an amenable number.

22112020112221 is a deficient number, since it is larger than the sum of its proper divisors (1770062526179).

22112020112221 is a wasteful number, since it uses less digits than its factorization.

22112020112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556396.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22112020112221 its reverse (12221102021122), we get a palindrome (34333122133343).

The spelling of 22112020112221 in words is "twenty-two trillion, one hundred twelve billion, twenty million, one hundred twelve thousand, two hundred twenty-one".