22212301998 has 16 divisors (see below), whose sum is σ = 44427197520. Its totient is φ = 7403668416.

The previous prime is 22212301997. The next prime is 22212302011. The reversal of 22212301998 is 89910321222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212301997) 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, 13858 + ... + 211226.

It is an arithmetic number, because the mean of its divisors is an integer number (2776699845).

Almost surely, 2^22212301998 is an apocalyptic number.

22212301998 is an abundant number, since it is smaller than the sum of its proper divisors (22214895522).

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

22212301998 is a wasteful number, since it uses less digits than its factorization.

22212301998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216131.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 22212301998 in words is "twenty-two billion, two hundred twelve million, three hundred one thousand, nine hundred ninety-eight".