22220312302277 has 2 divisors, whose sum is σ = 22220312302278. Its totient is φ = 22220312302276.

The previous prime is 22220312302271. The next prime is 22220312302289. The reversal of 22220312302277 is 77220321302222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22217025688036 + 3286614241 = 4713494^2 + 57329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220312302277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220312302271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110156151138 + 11110156151139.

It is an arithmetic number, because the mean of its divisors is an integer number (11110156151139).

Almost surely, 2^{22220312302277} is an apocalyptic number.

It is an amenable number.

22220312302277 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220312302277 is an equidigital number, since it uses as much as digits as its factorization.

22220312302277 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 35.

Adding to 22220312302277 its reverse (77220321302222), we get a palindrome (99440633604499).

The spelling of 22220312302277 in words is "twenty-two trillion, two hundred twenty billion, three hundred twelve million, three hundred two thousand, two hundred seventy-seven".