222095261 has 2 divisors, whose sum is σ = 222095262. Its totient is φ = 222095260.

The previous prime is 222095249. The next prime is 222095297. The reversal of 222095261 is 162590222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221712100 + 383161 = 14890^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 222095261 - 2⁶ = 222095197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222095231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111047630 + 111047631.

It is an arithmetic number, because the mean of its divisors is an integer number (111047631).

Almost surely, 2^222095261 is an apocalyptic number.

It is an amenable number.

222095261 is a deficient number, since it is larger than the sum of its proper divisors (1).

222095261 is an equidigital number, since it uses as much as digits as its factorization.

222095261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 222095261 is about 14902.8608327395. The cubic root of 222095261 is about 605.5914903769.

The spelling of 222095261 in words is "two hundred twenty-two million, ninety-five thousand, two hundred sixty-one".