12112112211222 has 32 divisors (see below), whose sum is σ = 24230945642112. Its totient is φ = 4036250718144.

The previous prime is 12112112211203. The next prime is 12112112211233. The reversal of 12112112211222 is 22211221121121.

It is a nude number because it is divisible by every one of its digits.

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, 412705953 + ... + 412735299.

It is an arithmetic number, because the mean of its divisors is an integer number (757217051316).

Almost surely, 2^{12112112211222} is an apocalyptic number.

12112112211222 is an abundant number, since it is smaller than the sum of its proper divisors (12118833430890).

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

12112112211222 is a wasteful number, since it uses less digits than its factorization.

12112112211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46092.

The product of its digits is 128, while the sum is 21.

Adding to 12112112211222 its reverse (22211221121121), we get a palindrome (34323333332343).

The spelling of 12112112211222 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-two".