22221134540 has 36 divisors (see below), whose sum is σ = 51292260768. Its totient is φ = 8080411680.

The previous prime is 22221134527. The next prime is 22221134587. The reversal of 22221134540 is 4543112222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4588724 + ... + 4593563.

Almost surely, 2^22221134540 is an apocalyptic number.

22221134540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221134540 is an abundant number, since it is smaller than the sum of its proper divisors (29071126228).

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

22221134540 is a wasteful number, since it uses less digits than its factorization.

22221134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182318 (or 9182305 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 22221134540 its reverse (4543112222), we get a palindrome (26764246762).

The spelling of 22221134540 in words is "twenty-two billion, two hundred twenty-one million, one hundred thirty-four thousand, five hundred forty".