22222221111101 has 16 divisors (see below), whose sum is σ = 24328950268416. Its totient is φ = 20129979870000.

The previous prime is 22222221111049. The next prime is 22222221111121. The reversal of 22222221111101 is 10111112222222.

It is not a de Polignac number, because 22222221111101 - 2⁶ = 22222221111037 is a prime.

It is a super-2 number, since 2×22222221111101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222221111121) 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, 5000006 + ... + 8333336.

It is an arithmetic number, because the mean of its divisors is an integer number (1520559391776).

Almost surely, 2^{22222221111101} is an apocalyptic number.

It is an amenable number.

22222221111101 is a deficient number, since it is larger than the sum of its proper divisors (2106729157315).

22222221111101 is a wasteful number, since it uses less digits than its factorization.

22222221111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335504.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22222221111101 its reverse (10111112222222), we get a palindrome (32333333333323).

It can be divided in two parts, 22222221 and 111101, that added together give a palindrome (22333322).

The spelling of 22222221111101 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred one".