1222123003 has 4 divisors (see below), whose sum is σ = 1238864488. Its totient is φ = 1205381520.

The previous prime is 1222122989. The next prime is 1222123027. The reversal of 1222123003 is 3003212221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3003212221 = 67 ⋅44824063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222123003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222123043) 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, 8370633 + ... + 8370778.

It is an arithmetic number, because the mean of its divisors is an integer number (309716122).

Almost surely, 2^1222123003 is an apocalyptic number.

1222123003 is a deficient number, since it is larger than the sum of its proper divisors (16741485).

1222123003 is an equidigital number, since it uses as much as digits as its factorization.

1222123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16741484.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1222123003 is about 34958.8758829571. The cubic root of 1222123003 is about 1069.1491774828.

Adding to 1222123003 its reverse (3003212221), we get a palindrome (4225335224).

The spelling of 1222123003 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, three".