2224221977 has 2 divisors, whose sum is σ = 2224221978. Its totient is φ = 2224221976.

The previous prime is 2224221971. The next prime is 2224222087. The reversal of 2224221977 is 7791224222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2059253641 + 164968336 = 45379^2 + 12844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224221977 - 2¹⁸ = 2223959833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2224221977.

It is not a weakly prime, because it can be changed into another prime (2224221971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112110988 + 1112110989.

It is an arithmetic number, because the mean of its divisors is an integer number (1112110989).

Almost surely, 2^2224221977 is an apocalyptic number.

It is an amenable number.

2224221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2224221977 is an equidigital number, since it uses as much as digits as its factorization.

2224221977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 2224221977 is about 47161.6579119098. The cubic root of 2224221977 is about 1305.3472017945.

The spelling of 2224221977 in words is "two billion, two hundred twenty-four million, two hundred twenty-one thousand, nine hundred seventy-seven".