12210474444 has 36 divisors (see below), whose sum is σ = 33142717944. Its totient is φ = 3488706816.

The previous prime is 12210474433. The next prime is 12210474449. The reversal of 12210474444 is 44447401221.

It is a happy number.

It is a super-2 number, since 2×12210474444² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12210474449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10382469 + ... + 10383644.

It is an arithmetic number, because the mean of its divisors is an integer number (920631054).

Almost surely, 2^12210474444 is an apocalyptic number.

12210474444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12210474444 is an abundant number, since it is smaller than the sum of its proper divisors (20932243500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210474444 is a wasteful number, since it uses less digits than its factorization.

12210474444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20766134 (or 20766125 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

Adding to 12210474444 its reverse (44447401221), we get a palindrome (56657875665).

The spelling of 12210474444 in words is "twelve billion, two hundred ten million, four hundred seventy-four thousand, four hundred forty-four".