1222512103 has 4 divisors (see below), whose sum is σ = 1225272168. Its totient is φ = 1219752040.

The previous prime is 1222512101. The next prime is 1222512119. The reversal of 1222512103 is 3012152221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3012152221 = 13 ⋅231704017.

It is a cyclic number.

It is not a de Polignac number, because 1222512103 - 2¹ = 1222512101 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 (1222512101) 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, 1379368 + ... + 1380253.

It is an arithmetic number, because the mean of its divisors is an integer number (306318042).

Almost surely, 2^1222512103 is an apocalyptic number.

1222512103 is a deficient number, since it is larger than the sum of its proper divisors (2760065).

1222512103 is an equidigital number, since it uses as much as digits as its factorization.

1222512103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760064.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1222512103 is about 34964.4405503649. The cubic root of 1222512103 is about 1069.2626308211.

Adding to 1222512103 its reverse (3012152221), we get a palindrome (4234664324).

It can be divided in two parts, 122 and 2512103, that added together give a square (2512225 = 1585²).

The spelling of 1222512103 in words is "one billion, two hundred twenty-two million, five hundred twelve thousand, one hundred three".