227199906887 has 2 divisors, whose sum is σ = 227199906888. Its totient is φ = 227199906886.

The previous prime is 227199906823. The next prime is 227199906893. The reversal of 227199906887 is 788609991722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 227199906887 - 2⁶ = 227199906823 is a prime.

It is a super-2 number, since 2×227199906887² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227199906487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113599953443 + 113599953444.

It is an arithmetic number, because the mean of its divisors is an integer number (113599953444).

Almost surely, 2^227199906887 is an apocalyptic number.

227199906887 is a deficient number, since it is larger than the sum of its proper divisors (1).

227199906887 is an equidigital number, since it uses as much as digits as its factorization.

227199906887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 68.

The spelling of 227199906887 in words is "two hundred twenty-seven billion, one hundred ninety-nine million, nine hundred six thousand, eight hundred eighty-seven".