22142142343397 has 2 divisors, whose sum is σ = 22142142343398. Its totient is φ = 22142142343396.

The previous prime is 22142142343381. The next prime is 22142142343421. The reversal of 22142142343397 is 79334324124122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13187690568196 + 8954451775201 = 3631486^2 + 2992399^2 .

It is a cyclic number.

It is not a de Polignac number, because 22142142343397 - 2⁴ = 22142142343381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142142343697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071071171698 + 11071071171699.

It is an arithmetic number, because the mean of its divisors is an integer number (11071071171699).

Almost surely, 2^{22142142343397} is an apocalyptic number.

It is an amenable number.

22142142343397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142142343397 is an equidigital number, since it uses as much as digits as its factorization.

22142142343397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 47.

The spelling of 22142142343397 in words is "twenty-two trillion, one hundred forty-two billion, one hundred forty-two million, three hundred forty-three thousand, three hundred ninety-seven".