22212012111 has 48 divisors (see below), whose sum is σ = 33004619520. Its totient is φ = 13225766400.

The previous prime is 22212012101. The next prime is 22212012139. The reversal of 22212012111 is 11121021222.

It is not a de Polignac number, because 22212012111 - 2²¹ = 22209914959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212012101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6607071 + ... + 6610431.

It is an arithmetic number, because the mean of its divisors is an integer number (687596240).

Almost surely, 2^22212012111 is an apocalyptic number.

22212012111 is a deficient number, since it is larger than the sum of its proper divisors (10792607409).

22212012111 is a wasteful number, since it uses less digits than its factorization.

22212012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22212012111 its reverse (11121021222), we get a palindrome (33333033333).

The spelling of 22212012111 in words is "twenty-two billion, two hundred twelve million, twelve thousand, one hundred eleven".