22142142343420 has 48 divisors (see below), whose sum is σ = 50753099916288. Its totient is φ = 8047328644160.

The previous prime is 22142142343397. The next prime is 22142142343421. The reversal of 22142142343420 is 2434324124122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142142343421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26839492 + ... + 27652171.

It is an arithmetic number, because the mean of its divisors is an integer number (1057356248256).

Almost surely, 2^{22142142343420} is an apocalyptic number.

22142142343420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22142142343420 is an abundant number, since it is smaller than the sum of its proper divisors (28610957572868).

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

22142142343420 is a wasteful number, since it uses less digits than its factorization.

22142142343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54493530 (or 54493528 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 22142142343420 its reverse (2434324124122), we get a palindrome (24576466467542).

The spelling of 22142142343420 in words is "twenty-two trillion, one hundred forty-two billion, one hundred forty-two million, three hundred forty-three thousand, four hundred twenty".