22113111111121 has 16 divisors (see below), whose sum is σ = 23126004050688. Its totient is φ = 21104511524800.

The previous prime is 22113111111107. The next prime is 22113111111151. The reversal of 22113111111121 is 12111111131122.

It is a happy number.

It is not a de Polignac number, because 22113111111121 - 2³⁹ = 21563355297233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113111111151) 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, 207139860 + ... + 207246586.

It is an arithmetic number, because the mean of its divisors is an integer number (1445375253168).

Almost surely, 2^{22113111111121} is an apocalyptic number.

It is an amenable number.

22113111111121 is a deficient number, since it is larger than the sum of its proper divisors (1012892939567).

22113111111121 is a wasteful number, since it uses less digits than its factorization.

22113111111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126752.

The product of its digits is 24, while the sum is 19.

Adding to 22113111111121 its reverse (12111111131122), we get a palindrome (34224222242243).

The spelling of 22113111111121 in words is "twenty-two trillion, one hundred thirteen billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty-one".