22420422218 has 16 divisors (see below), whose sum is σ = 36939827520. Its totient is φ = 10158451776.

The previous prime is 22420422217. The next prime is 22420422251. The reversal of 22420422218 is 81222402422.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22420422217) 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, 12825455 + ... + 12827202.

It is an arithmetic number, because the mean of its divisors is an integer number (2308739220).

Almost surely, 2^22420422218 is an apocalyptic number.

22420422218 is a deficient number, since it is larger than the sum of its proper divisors (14519405302).

22420422218 is a wasteful number, since it uses less digits than its factorization.

22420422218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25652701.

The product of its (nonzero) digits is 8192, while the sum is 29.

The spelling of 22420422218 in words is "twenty-two billion, four hundred twenty million, four hundred twenty-two thousand, two hundred eighteen".