2031222222977 has 2 divisors, whose sum is σ = 2031222222978. Its totient is φ = 2031222222976.

The previous prime is 2031222222973. The next prime is 2031222223057. The reversal of 2031222222977 is 7792222221302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1454843656561 + 576378566416 = 1206169^2 + 759196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031222222977 - 2² = 2031222222973 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031222222973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015611111488 + 1015611111489.

It is an arithmetic number, because the mean of its divisors is an integer number (1015611111489).

Almost surely, 2^{2031222222977} is an apocalyptic number.

It is an amenable number.

2031222222977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031222222977 is an equidigital number, since it uses as much as digits as its factorization.

2031222222977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 2031222222977 in words is "two trillion, thirty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, nine hundred seventy-seven".