22111223000 has 64 divisors (see below), whose sum is σ = 52252780320. Its totient is φ = 8756880000.

The previous prime is 22111222957. The next prime is 22111223003. The reversal of 22111223000 is 32211122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111223003) 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, 8462 + ... + 210461.

Almost surely, 2^22111223000 is an apocalyptic number.

22111223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26126390160).

22111223000 is an abundant number, since it is smaller than the sum of its proper divisors (30141557320).

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

22111223000 is a wasteful number, since it uses less digits than its factorization.

22111223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219045 (or 219031 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22111223000 its reverse (32211122), we get a palindrome (22143434122).

It can be divided in two parts, 2211122 and 3000, that added together give a palindrome (2214122).

The spelling of 22111223000 in words is "twenty-two billion, one hundred eleven million, two hundred twenty-three thousand".