221002266227 has 2 divisors, whose sum is σ = 221002266228. Its totient is φ = 221002266226.

The previous prime is 221002266193. The next prime is 221002266271. The reversal of 221002266227 is 722662200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002266227 - 2²⁰ = 221001217651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221002266193 and 221002266202.

It is not a weakly prime, because it can be changed into another prime (221002265227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501133113 + 110501133114.

It is an arithmetic number, because the mean of its divisors is an integer number (110501133114).

Almost surely, 2^221002266227 is an apocalyptic number.

221002266227 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002266227 is an equidigital number, since it uses as much as digits as its factorization.

221002266227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 221002266227 its reverse (722662200122), we get a palindrome (943664466349).

The spelling of 221002266227 in words is "two hundred twenty-one billion, two million, two hundred sixty-six thousand, two hundred twenty-seven".