22130299777 has 2 divisors, whose sum is σ = 22130299778. Its totient is φ = 22130299776.

The previous prime is 22130299771. The next prime is 22130299787. The reversal of 22130299777 is 77799203122.

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., 11346723441 + 10783576336 = 106521^2 + 103844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22130299777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22130299777.

It is not a weakly prime, because it can be changed into another prime (22130299771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065149888 + 11065149889.

It is an arithmetic number, because the mean of its divisors is an integer number (11065149889).

Almost surely, 2^22130299777 is an apocalyptic number.

It is an amenable number.

22130299777 is a deficient number, since it is larger than the sum of its proper divisors (1).

22130299777 is an equidigital number, since it uses as much as digits as its factorization.

22130299777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 49.

The spelling of 22130299777 in words is "twenty-two billion, one hundred thirty million, two hundred ninety-nine thousand, seven hundred seventy-seven".