12001121121122 has 16 divisors (see below), whose sum is σ = 20587707366912. Its totient is φ = 5139748404960.

The previous prime is 12001121121109. The next prime is 12001121121133. The reversal of 12001121121122 is 22112112110021.

It is a self number, because there is not a number n which added to its sum of digits gives 12001121121122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299080754 + ... + 299120877.

It is an arithmetic number, because the mean of its divisors is an integer number (1286731710432).

Almost surely, 2^{12001121121122} is an apocalyptic number.

12001121121122 is a deficient number, since it is larger than the sum of its proper divisors (8586586245790).

12001121121122 is a wasteful number, since it uses less digits than its factorization.

12001121121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598203073.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12001121121122 its reverse (22112112110021), we get a palindrome (34113233231143).

The spelling of 12001121121122 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".