22221112020101 has 2 divisors, whose sum is σ = 22221112020102. Its totient is φ = 22221112020100.

The previous prime is 22221112020067. The next prime is 22221112020137. The reversal of 22221112020101 is 10102021112222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21969234508225 + 251877511876 = 4687135^2 + 501874^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221112020101 - 2¹⁰ = 22221112019077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22221112020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221112022101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110556010050 + 11110556010051.

It is an arithmetic number, because the mean of its divisors is an integer number (11110556010051).

Almost surely, 2^{22221112020101} is an apocalyptic number.

It is an amenable number.

22221112020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221112020101 is an equidigital number, since it uses as much as digits as its factorization.

22221112020101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22221112020101 its reverse (10102021112222), we get a palindrome (32323133132323).

The spelling of 22221112020101 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, twenty thousand, one hundred one".