22040244420 has 24 divisors (see below), whose sum is σ = 61712684544. Its totient is φ = 5877398496.

The previous prime is 22040244407. The next prime is 22040244433. The reversal of 22040244420 is 2444204022.

It is an interprime number because it is at equal distance from previous prime (22040244407) and next prime (22040244433).

It is a super-2 number, since 2×22040244420² (a number of 21 digits) contains 22 as substring.

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, 183668644 + ... + 183668763.

It is an arithmetic number, because the mean of its divisors is an integer number (2571361856).

Almost surely, 2^22040244420 is an apocalyptic number.

22040244420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22040244420 is an abundant number, since it is smaller than the sum of its proper divisors (39672440124).

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

22040244420 is a wasteful number, since it uses less digits than its factorization.

22040244420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367337419 (or 367337417 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22040244420 its reverse (2444204022), we get a palindrome (24484448442).

The spelling of 22040244420 in words is "twenty-two billion, forty million, two hundred forty-four thousand, four hundred twenty".