222351540423949 has 2 divisors, whose sum is σ = 222351540423950. Its totient is φ = 222351540423948.

The previous prime is 222351540423931. The next prime is 222351540424093. The reversal of 222351540423949 is 949324045153222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221701230433225 + 650309990724 = 14889635^2 + 806418^2 .

It is a cyclic number.

It is not a de Polignac number, because 222351540423949 - 2²⁹ = 222351003553037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222351540423949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222351540423349) 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 as a sum of consecutive naturals, namely, 111175770211974 + 111175770211975.

It is an arithmetic number, because the mean of its divisors is an integer number (111175770211975).

Almost surely, 2^{222351540423949} is an apocalyptic number.

It is an amenable number.

222351540423949 is a deficient number, since it is larger than the sum of its proper divisors (1).

222351540423949 is an equidigital number, since it uses as much as digits as its factorization.

222351540423949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 55.

The spelling of 222351540423949 in words is "two hundred twenty-two trillion, three hundred fifty-one billion, five hundred forty million, four hundred twenty-three thousand, nine hundred forty-nine".