227022661 has 2 divisors, whose sum is σ = 227022662. Its totient is φ = 227022660.

The previous prime is 227022647. The next prime is 227022721. The reversal of 227022661 is 166220722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201469636 + 25553025 = 14194^2 + 5055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227022661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227026661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113511330 + 113511331.

It is an arithmetic number, because the mean of its divisors is an integer number (113511331).

Almost surely, 2^227022661 is an apocalyptic number.

It is an amenable number.

227022661 is a deficient number, since it is larger than the sum of its proper divisors (1).

227022661 is an equidigital number, since it uses as much as digits as its factorization.

227022661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 227022661 is about 15067.2711862500. The cubic root of 227022661 is about 610.0373183296.

The spelling of 227022661 in words is "two hundred twenty-seven million, twenty-two thousand, six hundred sixty-one".