221132212111207 has 2 divisors, whose sum is σ = 221132212111208. Its totient is φ = 221132212111206.

The previous prime is 221132212111177. The next prime is 221132212111219. The reversal of 221132212111207 is 702111212231122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221132212111207 - 2⁷ = 221132212111079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221132212111607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110566106055603 + 110566106055604.

It is an arithmetic number, because the mean of its divisors is an integer number (110566106055604).

Almost surely, 2^{221132212111207} is an apocalyptic number.

221132212111207 is a deficient number, since it is larger than the sum of its proper divisors (1).

221132212111207 is an equidigital number, since it uses as much as digits as its factorization.

221132212111207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 221132212111207 its reverse (702111212231122), we get a palindrome (923243424342329).

The spelling of 221132212111207 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, two hundred twelve million, one hundred eleven thousand, two hundred seven".