22002340420 has 12 divisors (see below), whose sum is σ = 46204914924. Its totient is φ = 8800936160.

The previous prime is 22002340411. The next prime is 22002340421. The reversal of 22002340420 is 2404320022.

It can be written as a sum of positive squares in 2 ways, for example, as 12348098884 + 9654241536 = 111122^2 + 98256^2 .

It is not an unprimeable number, because it can be changed into a prime (22002340421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550058491 + ... + 550058530.

It is an arithmetic number, because the mean of its divisors is an integer number (3850409577).

Almost surely, 2^22002340420 is an apocalyptic number.

22002340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002340420 is an abundant number, since it is smaller than the sum of its proper divisors (24202574504).

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

22002340420 is a wasteful number, since it uses less digits than its factorization.

22002340420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100117030 (or 1100117028 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 22002340420 its reverse (2404320022), we get a palindrome (24406660442).

The spelling of 22002340420 in words is "twenty-two billion, two million, three hundred forty thousand, four hundred twenty".