22042212340 has 12 divisors (see below), whose sum is σ = 46288645956. Its totient is φ = 8816884928.

The previous prime is 22042212337. The next prime is 22042212343. The reversal of 22042212340 is 4321224022.

It is an interprime number because it is at equal distance from previous prime (22042212337) and next prime (22042212343).

It can be written as a sum of positive squares in 2 ways, for example, as 16637904144 + 5404308196 = 128988^2 + 73514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042212343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 551055289 + ... + 551055328.

It is an arithmetic number, because the mean of its divisors is an integer number (3857387163).

Almost surely, 2^22042212340 is an apocalyptic number.

22042212340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22042212340 is an abundant number, since it is smaller than the sum of its proper divisors (24246433616).

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

22042212340 is a wasteful number, since it uses less digits than its factorization.

22042212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102110626 (or 1102110624 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22042212340 its reverse (4321224022), we get a palindrome (26363436362).

The spelling of 22042212340 in words is "twenty-two billion, forty-two million, two hundred twelve thousand, three hundred forty".