22202001318 has 32 divisors (see below), whose sum is σ = 51504862464. Its totient is φ = 6248750112.

The previous prime is 22202001299. The next prime is 22202001319. The reversal of 22202001318 is 81310020222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 22202001294 and 22202001303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202001319) 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, 3942105 + ... + 3947732.

It is an arithmetic number, because the mean of its divisors is an integer number (1609526952).

Almost surely, 2^22202001318 is an apocalyptic number.

22202001318 is an abundant number, since it is smaller than the sum of its proper divisors (29302861146).

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

22202001318 is a wasteful number, since it uses less digits than its factorization.

22202001318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889916.

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 22202001318 in words is "twenty-two billion, two hundred two million, one thousand, three hundred eighteen".