1244222123 has 4 divisors (see below), whose sum is σ = 1244624160. Its totient is φ = 1243820088.

The previous prime is 1244222101. The next prime is 1244222143. The reversal of 1244222123 is 3212224421.

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 1244222123 - 2¹⁶ = 1244156587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244222143) 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, 196340 + ... + 202577.

It is an arithmetic number, because the mean of its divisors is an integer number (311156040).

Almost surely, 2^1244222123 is an apocalyptic number.

1244222123 is a deficient number, since it is larger than the sum of its proper divisors (402037).

1244222123 is an equidigital number, since it uses as much as digits as its factorization.

1244222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402036.

The product of its digits is 1536, while the sum is 23.

The square root of 1244222123 is about 35273.5328964934. The cubic root of 1244222123 is about 1075.5550400015. Note that the first 3 decimals are identical.

Adding to 1244222123 its reverse (3212224421), we get a palindrome (4456446544).

The spelling of 1244222123 in words is "one billion, two hundred forty-four million, two hundred twenty-two thousand, one hundred twenty-three".