22111001221101 has 64 divisors (see below), whose sum is σ = 34778511371520. Its totient is φ = 12363852533760.

The previous prime is 22111001221093. The next prime is 22111001221123. The reversal of 22111001221101 is 10112210011122.

It is a happy number.

It is not a de Polignac number, because 22111001221101 - 2³ = 22111001221093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111001221501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 320921866 + ... + 320990756.

It is an arithmetic number, because the mean of its divisors is an integer number (543414240180).

Almost surely, 2^{22111001221101} is an apocalyptic number.

It is an amenable number.

22111001221101 is a deficient number, since it is larger than the sum of its proper divisors (12667510150419).

22111001221101 is a wasteful number, since it uses less digits than its factorization.

22111001221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85646.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22111001221101 its reverse (10112210011122), we get a palindrome (32223211232223).

The spelling of 22111001221101 in words is "twenty-two trillion, one hundred eleven billion, one million, two hundred twenty-one thousand, one hundred one".