22112021101 has 4 divisors (see below), whose sum is σ = 22112717500. Its totient is φ = 22111324704.

The previous prime is 22112021081. The next prime is 22112021161. The reversal of 22112021101 is 10112021122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17761959076 + 4350062025 = 133274^2 + 65955^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112021101 - 2⁵ = 22112021069 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 (22112021161) 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, 298176 + ... + 364873.

It is an arithmetic number, because the mean of its divisors is an integer number (5528179375).

Almost surely, 2^22112021101 is an apocalyptic number.

It is an amenable number.

22112021101 is a deficient number, since it is larger than the sum of its proper divisors (696399).

22112021101 is an equidigital number, since it uses as much as digits as its factorization.

22112021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696398.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22112021101 its reverse (10112021122), we get a palindrome (32224042223).

The spelling of 22112021101 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, one hundred one".