22002441977 has 2 divisors, whose sum is σ = 22002441978. Its totient is φ = 22002441976.

The previous prime is 22002441943. The next prime is 22002442027. The reversal of 22002441977 is 77914420022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16657516096 + 5344925881 = 129064^2 + 73109^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002441977 - 2¹² = 22002437881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22002441977.

It is not a weakly prime, because it can be changed into another prime (22002461977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001220988 + 11001220989.

It is an arithmetic number, because the mean of its divisors is an integer number (11001220989).

Almost surely, 2^22002441977 is an apocalyptic number.

It is an amenable number.

22002441977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002441977 is an equidigital number, since it uses as much as digits as its factorization.

22002441977 is an evil number, because the sum of its binary digits is even.

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

Adding to 22002441977 its reverse (77914420022), we get a palindrome (99916861999).

The spelling of 22002441977 in words is "twenty-two billion, two million, four hundred forty-one thousand, nine hundred seventy-seven".