22102257222 has 24 divisors (see below), whose sum is σ = 47951181720. Its totient is φ = 7357733280.

The previous prime is 22102257193. The next prime is 22102257223. The reversal of 22102257222 is 22275220122.

It is a happy number.

22102257222 is a `hidden beast` number, since 2 + 210 + 225 + 7 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102257223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793072 + ... + 820467.

It is an arithmetic number, because the mean of its divisors is an integer number (1997965905).

Almost surely, 2^22102257222 is an apocalyptic number.

22102257222 is an abundant number, since it is smaller than the sum of its proper divisors (25848924498).

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

22102257222 is a wasteful number, since it uses less digits than its factorization.

22102257222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614308 (or 1614305 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

Adding to 22102257222 its reverse (22275220122), we get a palindrome (44377477344).

The spelling of 22102257222 in words is "twenty-two billion, one hundred two million, two hundred fifty-seven thousand, two hundred twenty-two".