12226999 has 2 divisors, whose sum is σ = 12227000. Its totient is φ = 12226998.

The previous prime is 12226993. The next prime is 12227021. The reversal of 12226999 is 99962221.

12226999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12226999 - 2⁵ = 12226967 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12226993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113499 + 6113500.

It is an arithmetic number, because the mean of its divisors is an integer number (6113500).

Almost surely, 2^12226999 is an apocalyptic number.

12226999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226999 is an equidigital number, since it uses as much as digits as its factorization.

12226999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 12226999 is about 3496.7125989992. The cubic root of 12226999 is about 230.3774457792.

It can be divided in two parts, 12226 and 999, that added together give a square (13225 = 115²).

The spelling of 12226999 in words is "twelve million, two hundred twenty-six thousand, nine hundred ninety-nine".