1012211022187 has 2 divisors, whose sum is σ = 1012211022188. Its totient is φ = 1012211022186.

The previous prime is 1012211022157. The next prime is 1012211022253. The reversal of 1012211022187 is 7812201122101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012211022187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012211022157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506105511093 + 506105511094.

It is an arithmetic number, because the mean of its divisors is an integer number (506105511094).

Almost surely, 2^{1012211022187} is an apocalyptic number.

1012211022187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012211022187 is an equidigital number, since it uses as much as digits as its factorization.

1012211022187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 1012211022187 its reverse (7812201122101), we get a palindrome (8824412144288).

The spelling of 1012211022187 in words is "one trillion, twelve billion, two hundred eleven million, twenty-two thousand, one hundred eighty-seven".