22542212220 has 96 divisors (see below), whose sum is σ = 69538162176. Its totient is φ = 5410656000.

The previous prime is 22542212207. The next prime is 22542212221. The reversal of 22542212220 is 2221224522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102424 + ... + 235743.

It is an arithmetic number, because the mean of its divisors is an integer number (724355856).

Almost surely, 2^22542212220 is an apocalyptic number.

22542212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22542212220 is an abundant number, since it is smaller than the sum of its proper divisors (46995949956).

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

22542212220 is a wasteful number, since it uses less digits than its factorization.

22542212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338291 (or 338289 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 22542212220 its reverse (2221224522), we get a palindrome (24763436742).

The spelling of 22542212220 in words is "twenty-two billion, five hundred forty-two million, two hundred twelve thousand, two hundred twenty".