221002211211253 has 2 divisors, whose sum is σ = 221002211211254. Its totient is φ = 221002211211252.

The previous prime is 221002211211151. The next prime is 221002211211259. The reversal of 221002211211253 is 352112112200122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204405981831844 + 16596229379409 = 14297062^2 + 4073847^2 .

It is a cyclic number.

It is not a de Polignac number, because 221002211211253 - 2⁹ = 221002211210741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221002211211259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501105605626 + 110501105605627.

It is an arithmetic number, because the mean of its divisors is an integer number (110501105605627).

Almost surely, 2^{221002211211253} is an apocalyptic number.

It is an amenable number.

221002211211253 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002211211253 is an equidigital number, since it uses as much as digits as its factorization.

221002211211253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 221002211211253 its reverse (352112112200122), we get a palindrome (573114323411375).

The spelling of 221002211211253 in words is "two hundred twenty-one trillion, two billion, two hundred eleven million, two hundred eleven thousand, two hundred fifty-three".