1131202222187 has 2 divisors, whose sum is σ = 1131202222188. Its totient is φ = 1131202222186.

The previous prime is 1131202222099. The next prime is 1131202222211. The reversal of 1131202222187 is 7812222021311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131202222187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131202222987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565601111093 + 565601111094.

It is an arithmetic number, because the mean of its divisors is an integer number (565601111094).

Almost surely, 2^{1131202222187} is an apocalyptic number.

1131202222187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131202222187 is an equidigital number, since it uses as much as digits as its factorization.

1131202222187 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1131202222187 its reverse (7812222021311), we get a palindrome (8943424243498).

The spelling of 1131202222187 in words is "one trillion, one hundred thirty-one billion, two hundred two million, two hundred twenty-two thousand, one hundred eighty-seven".