22251015222 has 16 divisors (see below), whose sum is σ = 44934090240. Its totient is φ = 7344995112.

The previous prime is 22251015203. The next prime is 22251015229.

22251015222 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22251015192 and 22251015201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22251015229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18001822 + ... + 18003057.

It is an arithmetic number, because the mean of its divisors is an integer number (2808380640).

Almost surely, 2^22251015222 is an apocalyptic number.

22251015222 is an abundant number, since it is smaller than the sum of its proper divisors (22683075018).

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

22251015222 is a wasteful number, since it uses less digits than its factorization.

22251015222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36004987.

The product of its (nonzero) digits is 1600, while the sum is 24.

It can be divided in two parts, 222510 and 15222, that added together give a palindrome (237732).

The spelling of 22251015222 in words is "twenty-two billion, two hundred fifty-one million, fifteen thousand, two hundred twenty-two".