1222204103 has 4 divisors (see below), whose sum is σ = 1294098480. Its totient is φ = 1150309728.

The previous prime is 1222204099. The next prime is 1222204111. The reversal of 1222204103 is 3014022221.

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 1222204103 - 2² = 1222204099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 71894359 = 1222204103 / (1 + 2 + 2 + 2 + 2 + 0 + 4 + 1 + 0 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222204163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35947163 + ... + 35947196.

It is an arithmetic number, because the mean of its divisors is an integer number (323524620).

Almost surely, 2^1222204103 is an apocalyptic number.

1222204103 is a deficient number, since it is larger than the sum of its proper divisors (71894377).

1222204103 is an equidigital number, since it uses as much as digits as its factorization.

1222204103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71894376.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1222204103 is about 34960.0357980366. The cubic root of 1222204103 is about 1069.1728265155.

Adding to 1222204103 its reverse (3014022221), we get a palindrome (4236226324).

The spelling of 1222204103 in words is "one billion, two hundred twenty-two million, two hundred four thousand, one hundred three".