12002022112 has 48 divisors (see below), whose sum is σ = 24312506400. Its totient is φ = 5828018688.

The previous prime is 12002022101. The next prime is 12002022143. The reversal of 12002022112 is 21122020021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12002022092 and 12002022101.

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, 650389 + ... + 668587.

It is an arithmetic number, because the mean of its divisors is an integer number (506510550).

Almost surely, 2^12002022112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12156253200).

12002022112 is an abundant number, since it is smaller than the sum of its proper divisors (12310484288).

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

12002022112 is a wasteful number, since it uses less digits than its factorization.

12002022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18803 (or 18795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12002022112 its reverse (21122020021), we get a palindrome (33124042133).

The spelling of 12002022112 in words is "twelve billion, two million, twenty-two thousand, one hundred twelve".