2212311977 has 2 divisors, whose sum is σ = 2212311978. Its totient is φ = 2212311976.

The previous prime is 2212311953. The next prime is 2212312007. The reversal of 2212311977 is 7791132122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2030493721 + 181818256 = 45061^2 + 13484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212311977 - 2¹⁰ = 2212310953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212311917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106155988 + 1106155989.

It is an arithmetic number, because the mean of its divisors is an integer number (1106155989).

Almost surely, 2^2212311977 is an apocalyptic number.

It is an amenable number.

2212311977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212311977 is an equidigital number, since it uses as much as digits as its factorization.

2212311977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 2212311977 is about 47035.2206011623. The cubic root of 2212311977 is about 1303.0131246264.

The spelling of 2212311977 in words is "two billion, two hundred twelve million, three hundred eleven thousand, nine hundred seventy-seven".