2221103123 has 16 divisors (see below), whose sum is σ = 2376380160. Its totient is φ = 2070920544.

The previous prime is 2221103119. The next prime is 2221103149. The reversal of 2221103123 is 3213011222.

It is a cyclic number.

It is not a de Polignac number, because 2221103123 - 2² = 2221103119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221103623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554813 + ... + 558801.

It is an arithmetic number, because the mean of its divisors is an integer number (148523760).

Almost surely, 2^2221103123 is an apocalyptic number.

2221103123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2221103123 is a deficient number, since it is larger than the sum of its proper divisors (155277037).

2221103123 is a wasteful number, since it uses less digits than its factorization.

2221103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2221103123 is about 47128.5807445970. The cubic root of 2221103123 is about 1304.7367873409.

Adding to 2221103123 its reverse (3213011222), we get a palindrome (5434114345).

The spelling of 2221103123 in words is "two billion, two hundred twenty-one million, one hundred three thousand, one hundred twenty-three".