22111020234 has 24 divisors (see below), whose sum is σ = 48272919552. Its totient is φ = 7314077160.

The previous prime is 22111020221. The next prime is 22111020247. The reversal of 22111020234 is 43202011122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22111020221) and next prime (22111020247).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4686154 + ... + 4690869.

It is an arithmetic number, because the mean of its divisors is an integer number (2011371648).

Almost surely, 2^22111020234 is an apocalyptic number.

22111020234 is an abundant number, since it is smaller than the sum of its proper divisors (26161899318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111020234 is a wasteful number, since it uses less digits than its factorization.

22111020234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9377162 (or 9377159 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22111020234 its reverse (43202011122), we get a palindrome (65313031356).

The spelling of 22111020234 in words is "twenty-two billion, one hundred eleven million, twenty thousand, two hundred thirty-four".