22225342177 has 2 divisors, whose sum is σ = 22225342178. Its totient is φ = 22225342176.

The previous prime is 22225342031. The next prime is 22225342201. The reversal of 22225342177 is 77124352222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14611732641 + 7613609536 = 120879^2 + 87256^2 .

It is a cyclic number.

It is not a de Polignac number, because 22225342177 - 2¹¹ = 22225340129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22225340177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112671088 + 11112671089.

It is an arithmetic number, because the mean of its divisors is an integer number (11112671089).

Almost surely, 2^22225342177 is an apocalyptic number.

It is an amenable number.

22225342177 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225342177 is an equidigital number, since it uses as much as digits as its factorization.

22225342177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

Adding to 22225342177 its reverse (77124352222), we get a palindrome (99349694399).

The spelling of 22225342177 in words is "twenty-two billion, two hundred twenty-five million, three hundred forty-two thousand, one hundred seventy-seven".