12662224420187 has 2 divisors, whose sum is σ = 12662224420188. Its totient is φ = 12662224420186.

The previous prime is 12662224420177. The next prime is 12662224420193. The reversal of 12662224420187 is 78102442226621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12662224420187 - 2¹² = 12662224416091 is a prime.

It is a super-2 number, since 2×12662224420187² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12662224420147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331112210093 + 6331112210094.

It is an arithmetic number, because the mean of its divisors is an integer number (6331112210094).

Almost surely, 2^{12662224420187} is an apocalyptic number.

12662224420187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662224420187 is an equidigital number, since it uses as much as digits as its factorization.

12662224420187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 12662224420187 in words is "twelve trillion, six hundred sixty-two billion, two hundred twenty-four million, four hundred twenty thousand, one hundred eighty-seven".