1226002111 has 4 divisors (see below), whose sum is σ = 1254513832. Its totient is φ = 1197490392.

The previous prime is 1226002093. The next prime is 1226002139. The reversal of 1226002111 is 1112006221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1226002111 - 2²⁷ = 1091784383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226002171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14255796 + ... + 14255881.

It is an arithmetic number, because the mean of its divisors is an integer number (313628458).

Almost surely, 2^1226002111 is an apocalyptic number.

1226002111 is a deficient number, since it is larger than the sum of its proper divisors (28511721).

1226002111 is an equidigital number, since it uses as much as digits as its factorization.

1226002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28511720.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1226002111 is about 35014.3129448516. The cubic root of 1226002111 is about 1070.2791687211.

Adding to 1226002111 its reverse (1112006221), we get a palindrome (2338008332).

The spelling of 1226002111 in words is "one billion, two hundred twenty-six million, two thousand, one hundred eleven".