22013400222 has 48 divisors (see below), whose sum is σ = 53013428208. Its totient is φ = 6544861440.

The previous prime is 22013400191. The next prime is 22013400229. The reversal of 22013400222 is 22200431022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22013400195 and 22013400204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013400229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1038363 + ... + 1059350.

It is an arithmetic number, because the mean of its divisors is an integer number (1104446421).

Almost surely, 2^22013400222 is an apocalyptic number.

22013400222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22013400222 is an abundant number, since it is smaller than the sum of its proper divisors (31000027986).

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

22013400222 is a wasteful number, since it uses less digits than its factorization.

22013400222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097785 (or 2097782 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22013400222 its reverse (22200431022), we get a palindrome (44213831244).

The spelling of 22013400222 in words is "twenty-two billion, thirteen million, four hundred thousand, two hundred twenty-two".