12212112120144 has 80 divisors (see below), whose sum is σ = 32920324964352. Its totient is φ = 3893631938944.

The previous prime is 12212112120139. The next prime is 12212112120179. The reversal of 12212112120144 is 44102121121221.

12212112120144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67791697 + ... + 67971599.

Almost surely, 2^{12212112120144} is an apocalyptic number.

It is an amenable number.

12212112120144 is an abundant number, since it is smaller than the sum of its proper divisors (20708212844208).

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

12212112120144 is a wasteful number, since it uses less digits than its factorization.

12212112120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241424 (or 241418 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 12212112120144 its reverse (44102121121221), we get a palindrome (56314233241365).

The spelling of 12212112120144 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, one hundred forty-four".