222112120111177 has 2 divisors, whose sum is σ = 222112120111178. Its totient is φ = 222112120111176.

The previous prime is 222112120111121. The next prime is 222112120111213. The reversal of 222112120111177 is 771111021211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195126702938176 + 26985417173001 = 13968776^2 + 5194749^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112120111177 - 2²⁷ = 222111985893449 is a prime.

It is not a weakly prime, because it can be changed into another prime (222112120111877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056060055588 + 111056060055589.

It is an arithmetic number, because the mean of its divisors is an integer number (111056060055589).

Almost surely, 2^{222112120111177} is an apocalyptic number.

It is an amenable number.

222112120111177 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112120111177 is an equidigital number, since it uses as much as digits as its factorization.

222112120111177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 31.

Adding to 222112120111177 its reverse (771111021211222), we get a palindrome (993223141322399).

The spelling of 222112120111177 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, one hundred eleven thousand, one hundred seventy-seven".