12122202450 has 48 divisors (see below), whose sum is σ = 30128446656. Its totient is φ = 3225556800.

The previous prime is 12122202419. The next prime is 12122202457. The reversal of 12122202450 is 5420222121.

It is not an unprimeable number, because it can be changed into a prime (12122202457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18502 + ... + 156801.

It is an arithmetic number, because the mean of its divisors is an integer number (627675972).

Almost surely, 2^12122202450 is an apocalyptic number.

12122202450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122202450 is an abundant number, since it is smaller than the sum of its proper divisors (18006244206).

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

12122202450 is a wasteful number, since it uses less digits than its factorization.

12122202450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175779 (or 175774 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12122202450 its reverse (5420222121), we get a palindrome (17542424571).

The spelling of 12122202450 in words is "twelve billion, one hundred twenty-two million, two hundred two thousand, four hundred fifty".