226622777 has 2 divisors, whose sum is σ = 226622778. Its totient is φ = 226622776.

The previous prime is 226622761. The next prime is 226622779. The reversal of 226622777 is 777226622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154355776 + 72267001 = 12424^2 + 8501^2 .

It is a cyclic number.

It is not a de Polignac number, because 226622777 - 2⁴ = 226622761 is a prime.

Together with 226622779, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (226622779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113311388 + 113311389.

It is an arithmetic number, because the mean of its divisors is an integer number (113311389).

Almost surely, 2^226622777 is an apocalyptic number.

It is an amenable number.

226622777 is a deficient number, since it is larger than the sum of its proper divisors (1).

226622777 is an equidigital number, since it uses as much as digits as its factorization.

226622777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 226622777 is about 15053.9953832861. The cubic root of 226622777 is about 609.6789289479.

The spelling of 226622777 in words is "two hundred twenty-six million, six hundred twenty-two thousand, seven hundred seventy-seven".