22222101121 has 8 divisors (see below), whose sum is σ = 25078233600. Its totient is φ = 19505292240.

The previous prime is 22222101113. The next prime is 22222101127. The reversal of 22222101121 is 12110122222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22222101121 - 2³ = 22222101113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22222101095 and 22222101104.

It is not an unprimeable number, because it can be changed into a prime (22222101127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34830561 + ... + 34831198.

It is an arithmetic number, because the mean of its divisors is an integer number (3134779200).

Almost surely, 2^22222101121 is an apocalyptic number.

It is an amenable number.

22222101121 is a deficient number, since it is larger than the sum of its proper divisors (2856132479).

22222101121 is a wasteful number, since it uses less digits than its factorization.

22222101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69661799.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22222101121 its reverse (12110122222), we get a palindrome (34332223343).

It can be divided in two parts, 22222101 and 121, that added together give a palindrome (22222222).

The spelling of 22222101121 in words is "twenty-two billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-one".