1212223411144 has 16 divisors (see below), whose sum is σ = 2273025830400. Its totient is φ = 606083189712.

The previous prime is 1212223411129. The next prime is 1212223411187. The reversal of 1212223411144 is 4411143222121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383272 + ... + 3724375.

It is an arithmetic number, because the mean of its divisors is an integer number (142064114400).

Almost surely, 2^{1212223411144} is an apocalyptic number.

It is an amenable number.

1212223411144 is a deficient number, since it is larger than the sum of its proper divisors (1060802419256).

1212223411144 is a wasteful number, since it uses less digits than its factorization.

1212223411144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128972 (or 7128968 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

Adding to 1212223411144 its reverse (4411143222121), we get a palindrome (5623366633265).

The spelling of 1212223411144 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, four hundred eleven thousand, one hundred forty-four".