222773042320181 has 2 divisors, whose sum is σ = 222773042320182. Its totient is φ = 222773042320180.

The previous prime is 222773042320141. The next prime is 222773042320253. The reversal of 222773042320181 is 181023240377222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194438873009956 + 28334169310225 = 13944134^2 + 5322985^2 .

It is a cyclic number.

It is not a de Polignac number, because 222773042320181 - 2⁶ = 222773042320117 is a prime.

It is a super-2 number, since 2×222773042320181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222773042320121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111386521160090 + 111386521160091.

It is an arithmetic number, because the mean of its divisors is an integer number (111386521160091).

Almost surely, 2^{222773042320181} is an apocalyptic number.

It is an amenable number.

222773042320181 is a deficient number, since it is larger than the sum of its proper divisors (1).

222773042320181 is an equidigital number, since it uses as much as digits as its factorization.

222773042320181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 222773042320181 in words is "two hundred twenty-two trillion, seven hundred seventy-three billion, forty-two million, three hundred twenty thousand, one hundred eighty-one".