1222311103 has 12 divisors (see below), whose sum is σ = 1376063080. Its totient is φ = 1079225136.

The previous prime is 1222311091. The next prime is 1222311109. The reversal of 1222311103 is 3011132221.

It is not a de Polignac number, because 1222311103 - 2⁵ = 1222311071 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 (1222311109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81993 + ... + 95746.

Almost surely, 2^1222311103 is an apocalyptic number.

1222311103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222311103 is a deficient number, since it is larger than the sum of its proper divisors (153751977).

1222311103 is a wasteful number, since it uses less digits than its factorization.

1222311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177798 (or 177775 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1222311103 is about 34961.5660833436. The cubic root of 1222311103 is about 1069.2040264746.

Adding to 1222311103 its reverse (3011132221), we get a palindrome (4233443324).

The spelling of 1222311103 in words is "one billion, two hundred twenty-two million, three hundred eleven thousand, one hundred three".