12001221011022 has 8 divisors (see below), whose sum is σ = 24002442022056. Its totient is φ = 4000407003672.

The previous prime is 12001221011009. The next prime is 12001221011047. The reversal of 12001221011022 is 22011012210021.

It is a sphenic number, since it is the product of 3 distinct primes.

12001221011022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12001221010992 and 12001221011010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000101750913 + ... + 1000101750924.

It is an arithmetic number, because the mean of its divisors is an integer number (3000305252757).

Almost surely, 2^{12001221011022} is an apocalyptic number.

12001221011022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12001221011022 is a wasteful number, since it uses less digits than its factorization.

12001221011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000203501842.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001221011022 its reverse (22011012210021), we get a palindrome (34012233221043).

The spelling of 12001221011022 in words is "twelve trillion, one billion, two hundred twenty-one million, eleven thousand, twenty-two".