222763542144421 has 2 divisors, whose sum is σ = 222763542144422. Its totient is φ = 222763542144420.

The previous prime is 222763542144331. The next prime is 222763542144457. The reversal of 222763542144421 is 124441245367222.

222763542144421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220632730471521 + 2130811672900 = 14853711^2 + 1459730^2 .

It is a cyclic number.

It is not a de Polignac number, because 222763542144421 - 2⁷ = 222763542144293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222763542141421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111381771072210 + 111381771072211.

It is an arithmetic number, because the mean of its divisors is an integer number (111381771072211).

Almost surely, 2^{222763542144421} is an apocalyptic number.

It is an amenable number.

222763542144421 is a deficient number, since it is larger than the sum of its proper divisors (1).

222763542144421 is an equidigital number, since it uses as much as digits as its factorization.

222763542144421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 49.

The spelling of 222763542144421 in words is "two hundred twenty-two trillion, seven hundred sixty-three billion, five hundred forty-two million, one hundred forty-four thousand, four hundred twenty-one".