222011100187 has 2 divisors, whose sum is σ = 222011100188. Its totient is φ = 222011100186.

The previous prime is 222011100151. The next prime is 222011100217. The reversal of 222011100187 is 781001110222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222011100187 is a prime.

It is not a weakly prime, because it can be changed into another prime (222011100137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005550093 + 111005550094.

It is an arithmetic number, because the mean of its divisors is an integer number (111005550094).

Almost surely, 2^222011100187 is an apocalyptic number.

222011100187 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011100187 is an equidigital number, since it uses as much as digits as its factorization.

222011100187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 222011100187 in words is "two hundred twenty-two billion, eleven million, one hundred thousand, one hundred eighty-seven".