222277897 has 2 divisors, whose sum is σ = 222277898. Its totient is φ = 222277896.

The previous prime is 222277849. The next prime is 222277921. The reversal of 222277897 is 798772222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192071881 + 30206016 = 13859^2 + 5496^2 .

It is a cyclic number.

It is not a de Polignac number, because 222277897 - 2¹¹ = 222275849 is a prime.

It is not a weakly prime, because it can be changed into another prime (222277807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111138948 + 111138949.

It is an arithmetic number, because the mean of its divisors is an integer number (111138949).

Almost surely, 2^222277897 is an apocalyptic number.

It is an amenable number.

222277897 is a deficient number, since it is larger than the sum of its proper divisors (1).

222277897 is an equidigital number, since it uses as much as digits as its factorization.

222277897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 46.

The square root of 222277897 is about 14908.9871218671. The cubic root of 222277897 is about 605.7574439462.

The spelling of 222277897 in words is "two hundred twenty-two million, two hundred seventy-seven thousand, eight hundred ninety-seven".