211222102212127 has 2 divisors, whose sum is σ = 211222102212128. Its totient is φ = 211222102212126.

The previous prime is 211222102212097. The next prime is 211222102212139. The reversal of 211222102212127 is 721212201222112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211222102212127 is a prime.

It is a super-2 number, since 2×211222102212127² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222102212095 and 211222102212104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211222102212167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611051106063 + 105611051106064.

It is an arithmetic number, because the mean of its divisors is an integer number (105611051106064).

Almost surely, 2^{211222102212127} is an apocalyptic number.

211222102212127 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222102212127 is an equidigital number, since it uses as much as digits as its factorization.

211222102212127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 211222102212127 its reverse (721212201222112), we get a palindrome (932434303434239).

The spelling of 211222102212127 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred two million, two hundred twelve thousand, one hundred twenty-seven".