12244155242 has 64 divisors (see below), whose sum is σ = 21751027200. Its totient is φ = 5107322880.

The previous prime is 12244155233. The next prime is 12244155247. The reversal of 12244155242 is 24255144221.

It is a junction number, because it is equal to n+sod(n) for n = 12244155199 and 12244155208.

It is not an unprimeable number, because it can be changed into a prime (12244155247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2427359 + ... + 2432397.

It is an arithmetic number, because the mean of its divisors is an integer number (339859800).

Almost surely, 2^12244155242 is an apocalyptic number.

12244155242 is a deficient number, since it is larger than the sum of its proper divisors (9506871958).

12244155242 is a wasteful number, since it uses less digits than its factorization.

12244155242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its digits is 25600, while the sum is 32.

Adding to 12244155242 its reverse (24255144221), we get a palindrome (36499299463).

The spelling of 12244155242 in words is "twelve billion, two hundred forty-four million, one hundred fifty-five thousand, two hundred forty-two".