22212302677 has 2 divisors, whose sum is σ = 22212302678. Its totient is φ = 22212302676.

The previous prime is 22212302641. The next prime is 22212302681. The reversal of 22212302677 is 77620321222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12967287876 + 9245014801 = 113874^2 + 96151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212302677 is a prime.

It is a super-2 number, since 2×22212302677² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212302617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106151338 + 11106151339.

It is an arithmetic number, because the mean of its divisors is an integer number (11106151339).

Almost surely, 2^22212302677 is an apocalyptic number.

It is an amenable number.

22212302677 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212302677 is an equidigital number, since it uses as much as digits as its factorization.

22212302677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 22212302677 its reverse (77620321222), we get a palindrome (99832623899).

The spelling of 22212302677 in words is "twenty-two billion, two hundred twelve million, three hundred two thousand, six hundred seventy-seven".