227422621 has 2 divisors, whose sum is σ = 227422622. Its totient is φ = 227422620.

The previous prime is 227422537. The next prime is 227422627. The reversal of 227422621 is 126224722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222427396 + 4995225 = 14914^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 227422621 - 2⁷ = 227422493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227422621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227422627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113711310 + 113711311.

It is an arithmetic number, because the mean of its divisors is an integer number (113711311).

Almost surely, 2^227422621 is an apocalyptic number.

It is an amenable number.

227422621 is a deficient number, since it is larger than the sum of its proper divisors (1).

227422621 is an equidigital number, since it uses as much as digits as its factorization.

227422621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 227422621 is about 15080.5378219744. The cubic root of 227422621 is about 610.3953551006.

The spelling of 227422621 in words is "two hundred twenty-seven million, four hundred twenty-two thousand, six hundred twenty-one".