1222242638623 has 2 divisors, whose sum is σ = 1222242638624. Its totient is φ = 1222242638622.

The previous prime is 1222242638569. The next prime is 1222242638627. The reversal of 1222242638623 is 3268362422221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222242638623 - 2³⁷ = 1084803685151 is a prime.

It is a super-2 number, since 2×1222242638623² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222242638623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222242638627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611121319311 + 611121319312.

It is an arithmetic number, because the mean of its divisors is an integer number (611121319312).

Almost surely, 2^{1222242638623} is an apocalyptic number.

1222242638623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222242638623 is an equidigital number, since it uses as much as digits as its factorization.

1222242638623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 43.

The spelling of 1222242638623 in words is "one trillion, two hundred twenty-two billion, two hundred forty-two million, six hundred thirty-eight thousand, six hundred twenty-three".