222111401873 has 2 divisors, whose sum is σ = 222111401874. Its totient is φ = 222111401872.

The previous prime is 222111401849. The next prime is 222111401893. The reversal of 222111401873 is 378104111222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220907520064 + 1203881809 = 470008^2 + 34697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111401873 is a prime.

It is not a weakly prime, because it can be changed into another prime (222111401803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055700936 + 111055700937.

It is an arithmetic number, because the mean of its divisors is an integer number (111055700937).

Almost surely, 2^222111401873 is an apocalyptic number.

It is an amenable number.

222111401873 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111401873 is an equidigital number, since it uses as much as digits as its factorization.

222111401873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 222111401873 in words is "two hundred twenty-two billion, one hundred eleven million, four hundred one thousand, eight hundred seventy-three".