22143412240 has 40 divisors (see below), whose sum is σ = 51489704448. Its totient is φ = 8856286080.

The previous prime is 22143412223. The next prime is 22143412309. The reversal of 22143412240 is 4221434122.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121655 + ... + 1141225.

Almost surely, 2^22143412240 is an apocalyptic number.

22143412240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143412240 is an abundant number, since it is smaller than the sum of its proper divisors (29346292208).

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

22143412240 is a wasteful number, since it uses less digits than its factorization.

22143412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33727 (or 33721 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22143412240 its reverse (4221434122), we get a palindrome (26364846362).

The spelling of 22143412240 in words is "twenty-two billion, one hundred forty-three million, four hundred twelve thousand, two hundred forty".