12021022111222 has 16 divisors (see below), whose sum is σ = 18300855252672. Its totient is φ = 5920738936200.

The previous prime is 12021022111213. The next prime is 12021022111237. The reversal of 12021022111222 is 22211122012021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021022111222.

It is a congruent number.

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, 13737097 + ... + 14585947.

It is an arithmetic number, because the mean of its divisors is an integer number (1143803453292).

Almost surely, 2^{12021022111222} is an apocalyptic number.

12021022111222 is a deficient number, since it is larger than the sum of its proper divisors (6279833141450).

12021022111222 is a wasteful number, since it uses less digits than its factorization.

12021022111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954603.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12021022111222 its reverse (22211122012021), we get a palindrome (34232144123243).

The spelling of 12021022111222 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred eleven thousand, two hundred twenty-two".