1226111 has 2 divisors, whose sum is σ = 1226112. Its totient is φ = 1226110.

The previous prime is 1226101. The next prime is 1226117. The reversal of 1226111 is 1116221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226111 - 2¹⁰ = 1225087 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613055 + 613056.

It is an arithmetic number, because the mean of its divisors is an integer number (613056).

2^1226111 is an apocalyptic number.

1226111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226111 is an equidigital number, since it uses as much as digits as its factorization.

1226111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 14.

The square root of 1226111 is about 1107.2989659527. The cubic root of 1226111 is about 107.0310853870.

The spelling of 1226111 in words is "one million, two hundred twenty-six thousand, one hundred eleven".