12321121021122 has 16 divisors (see below), whose sum is σ = 24656560623072. Its totient is φ = 4104653910240.

The previous prime is 12321121021087. The next prime is 12321121021127. The reversal of 12321121021122 is 22112012112321.

It is not an unprimeable number, because it can be changed into a prime (12321121021127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596596348 + ... + 596616999.

It is an arithmetic number, because the mean of its divisors is an integer number (1541035038942).

Almost surely, 2^{12321121021122} is an apocalyptic number.

12321121021122 is an abundant number, since it is smaller than the sum of its proper divisors (12335439601950).

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

12321121021122 is a wasteful number, since it uses less digits than its factorization.

12321121021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193215073.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12321121021122 its reverse (22112012112321), we get a palindrome (34433133133443).

The spelling of 12321121021122 in words is "twelve trillion, three hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".