12221266471 has 2 divisors, whose sum is σ = 12221266472. Its totient is φ = 12221266470.

The previous prime is 12221266441. The next prime is 12221266501. The reversal of 12221266471 is 17466212221.

It is a balanced prime because it is at equal distance from previous prime (12221266441) and next prime (12221266501).

It is a cyclic number.

It is not a de Polignac number, because 12221266471 - 2²³ = 12212877863 is a prime.

It is a super-3 number, since 3×12221266471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221266411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110633235 + 6110633236.

It is an arithmetic number, because the mean of its divisors is an integer number (6110633236).

Almost surely, 2^12221266471 is an apocalyptic number.

12221266471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221266471 is an equidigital number, since it uses as much as digits as its factorization.

12221266471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

Adding to 12221266471 its reverse (17466212221), we get a palindrome (29687478692).

The spelling of 12221266471 in words is "twelve billion, two hundred twenty-one million, two hundred sixty-six thousand, four hundred seventy-one".