221199148458313 has 2 divisors, whose sum is σ = 221199148458314. Its totient is φ = 221199148458312.

The previous prime is 221199148458293. The next prime is 221199148458319. The reversal of 221199148458313 is 313854841991122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127724535134784 + 93474613323529 = 11301528^2 + 9668227^2 .

It is a cyclic number.

It is not a de Polignac number, because 221199148458313 - 2⁹ = 221199148457801 is a prime.

It is not a weakly prime, because it can be changed into another prime (221199148458319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110599574229156 + 110599574229157.

It is an arithmetic number, because the mean of its divisors is an integer number (110599574229157).

Almost surely, 2^{221199148458313} is an apocalyptic number.

It is an amenable number.

221199148458313 is a deficient number, since it is larger than the sum of its proper divisors (1).

221199148458313 is an equidigital number, since it uses as much as digits as its factorization.

221199148458313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14929920, while the sum is 61.

The spelling of 221199148458313 in words is "two hundred twenty-one trillion, one hundred ninety-nine billion, one hundred forty-eight million, four hundred fifty-eight thousand, three hundred thirteen".