212201011101187 has 2 divisors, whose sum is σ = 212201011101188. Its totient is φ = 212201011101186.

The previous prime is 212201011101181. The next prime is 212201011101217. The reversal of 212201011101187 is 781101110102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201011101187 - 2¹⁹ = 212201010576899 is a prime.

It is a super-2 number, since 2×212201011101187² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212201011101181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100505550593 + 106100505550594.

It is an arithmetic number, because the mean of its divisors is an integer number (106100505550594).

Almost surely, 2^{212201011101187} is an apocalyptic number.

212201011101187 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201011101187 is an equidigital number, since it uses as much as digits as its factorization.

212201011101187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 28.

Adding to 212201011101187 its reverse (781101110102212), we get a palindrome (993302121203399).

The spelling of 212201011101187 in words is "two hundred twelve trillion, two hundred one billion, eleven million, one hundred one thousand, one hundred eighty-seven".