22000012111 has 16 divisors (see below), whose sum is σ = 27988358400. Its totient is φ = 17142863640.

The previous prime is 22000012093. The next prime is 22000012129. The reversal of 22000012111 is 11121000022.

It is an interprime number because it is at equal distance from previous prime (22000012093) and next prime (22000012129).

It is not a de Polignac number, because 22000012111 - 2⁹ = 22000011599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000018111) 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, 2911681 + ... + 2919226.

It is an arithmetic number, because the mean of its divisors is an integer number (1749272400).

Almost surely, 2^22000012111 is an apocalyptic number.

22000012111 is a deficient number, since it is larger than the sum of its proper divisors (5988346289).

22000012111 is an equidigital number, since it uses as much as digits as its factorization.

22000012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830939 (or 5830925 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22000012111 its reverse (11121000022), we get a palindrome (33121012133).

The spelling of 22000012111 in words is "twenty-two billion, twelve thousand, one hundred eleven".