22202152240 has 20 divisors (see below), whose sum is σ = 51620004144. Its totient is φ = 8880860864.

The previous prime is 22202152223. The next prime is 22202152267. The reversal of 22202152240 is 4225120222.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138763372 + ... + 138763531.

Almost surely, 2^22202152240 is an apocalyptic number.

22202152240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202152240 is an abundant number, since it is smaller than the sum of its proper divisors (29417851904).

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

22202152240 is a wasteful number, since it uses less digits than its factorization.

22202152240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277526916 (or 277526910 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22202152240 its reverse (4225120222), we get a palindrome (26427272462).

The spelling of 22202152240 in words is "twenty-two billion, two hundred two million, one hundred fifty-two thousand, two hundred forty".