12122022112 has 24 divisors (see below), whose sum is σ = 23880275496. Its totient is φ = 6057190272.

The previous prime is 12122022109. The next prime is 12122022119. The reversal of 12122022112 is 21122022121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122022119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67498 + ... + 169705.

It is an arithmetic number, because the mean of its divisors is an integer number (995011479).

Almost surely, 2^12122022112 is an apocalyptic number.

It is an amenable number.

12122022112 is a deficient number, since it is larger than the sum of its proper divisors (11758253384).

12122022112 is a wasteful number, since it uses less digits than its factorization.

12122022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238810 (or 238802 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122022112 its reverse (21122022121), we get a palindrome (33244044233).

Subtracting 12122022112 from its reverse (21122022121), we obtain a palindrome (9000000009).

The spelling of 12122022112 in words is "twelve billion, one hundred twenty-two million, twenty-two thousand, one hundred twelve".