22051142222 has 16 divisors (see below), whose sum is σ = 34525457280. Its totient is φ = 10542951672.

The previous prime is 22051142219. The next prime is 22051142231. The reversal of 22051142222 is 22224115022.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 80729 + ... + 224987.

It is an arithmetic number, because the mean of its divisors is an integer number (2157841080).

Almost surely, 2^22051142222 is an apocalyptic number.

22051142222 is a deficient number, since it is larger than the sum of its proper divisors (12474315058).

22051142222 is a wasteful number, since it uses less digits than its factorization.

22051142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147607.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 22051142222 its reverse (22224115022), we get a palindrome (44275257244).

The spelling of 22051142222 in words is "twenty-two billion, fifty-one million, one hundred forty-two thousand, two hundred twenty-two".