12012111121022 has 16 divisors (see below), whose sum is σ = 18805155750432. Its totient is φ = 5743825607520.

The previous prime is 12012111120983. The next prime is 12012111121033. The reversal of 12012111121022 is 22012111121021.

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, 24690629 + ... + 25172432.

It is an arithmetic number, because the mean of its divisors is an integer number (1175322234402).

Almost surely, 2^{12012111121022} is an apocalyptic number.

12012111121022 is a deficient number, since it is larger than the sum of its proper divisors (6793044629410).

12012111121022 is a wasteful number, since it uses less digits than its factorization.

12012111121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49868323.

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

Adding to 12012111121022 its reverse (22012111121021), we get a palindrome (34024222242043).

Subtracting 12012111121022 from its reverse (22012111121021), we obtain a palindrome (9999999999999).

The spelling of 12012111121022 in words is "twelve trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, twenty-two".