12211102187 has 2 divisors, whose sum is σ = 12211102188. Its totient is φ = 12211102186.

The previous prime is 12211102177. The next prime is 12211102199. The reversal of 12211102187 is 78120111221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211102187 - 2⁴ = 12211102171 is a prime.

It is a super-2 number, since 2×12211102187² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211102177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105551093 + 6105551094.

It is an arithmetic number, because the mean of its divisors is an integer number (6105551094).

Almost surely, 2^12211102187 is an apocalyptic number.

12211102187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211102187 is an equidigital number, since it uses as much as digits as its factorization.

12211102187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 12211102187 in words is "twelve billion, two hundred eleven million, one hundred two thousand, one hundred eighty-seven".