12201122000000 has 112 divisors (see below), whose sum is σ = 30383269487610. Its totient is φ = 4880448000000.

The previous prime is 12201121999987. The next prime is 12201122000017. The reversal of 12201122000000 is 22110221.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 2691200878144 + 9509921121856 = 1640488^2 + 3083816^2 .

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 1050281 + ... + 5050280.

Almost surely, 2^{12201122000000} is an apocalyptic number.

12201122000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201122000000 is an abundant number, since it is smaller than the sum of its proper divisors (18182147487610).

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

12201122000000 is an frugal number, since it uses more digits than its factorization.

12201122000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100605 (or 6100568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12201122000000 its reverse (22110221), we get a palindrome (12201144110221).

The spelling of 12201122000000 in words is "twelve trillion, two hundred one billion, one hundred twenty-two million", and thus it is an aban number.