22120110877 has 2 divisors, whose sum is σ = 22120110878. Its totient is φ = 22120110876.

The previous prime is 22120110871. The next prime is 22120111007. The reversal of 22120110877 is 77801102122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17174364601 + 4945746276 = 131051^2 + 70326^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120110877 - 2¹⁵ = 22120078109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120110871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060055438 + 11060055439.

It is an arithmetic number, because the mean of its divisors is an integer number (11060055439).

Almost surely, 2^22120110877 is an apocalyptic number.

It is an amenable number.

22120110877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120110877 is an equidigital number, since it uses as much as digits as its factorization.

22120110877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

Adding to 22120110877 its reverse (77801102122), we get a palindrome (99921212999).

The spelling of 22120110877 in words is "twenty-two billion, one hundred twenty million, one hundred ten thousand, eight hundred seventy-seven".