22001310977 has 2 divisors, whose sum is σ = 22001310978. Its totient is φ = 22001310976.

The previous prime is 22001310967. The next prime is 22001311061. The reversal of 22001310977 is 77901310022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18506609521 + 3494701456 = 136039^2 + 59116^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001310977 - 2⁶ = 22001310913 is a prime.

It is not a weakly prime, because it can be changed into another prime (22001310907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000655488 + 11000655489.

It is an arithmetic number, because the mean of its divisors is an integer number (11000655489).

Almost surely, 2^22001310977 is an apocalyptic number.

It is an amenable number.

22001310977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001310977 is an equidigital number, since it uses as much as digits as its factorization.

22001310977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

Adding to 22001310977 its reverse (77901310022), we get a palindrome (99902620999).

The spelling of 22001310977 in words is "twenty-two billion, one million, three hundred ten thousand, nine hundred seventy-seven".