12002222120 has 32 divisors (see below), whose sum is σ = 30862857600. Its totient is φ = 4115047488.

The previous prime is 12002222107. The next prime is 12002222123. The reversal of 12002222120 is 2122220021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12002222095 and 12002222104.

It is not an unprimeable number, because it can be changed into a prime (12002222123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21432260 + ... + 21432819.

It is an arithmetic number, because the mean of its divisors is an integer number (964464300).

Almost surely, 2^12002222120 is an apocalyptic number.

12002222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002222120 is an abundant number, since it is smaller than the sum of its proper divisors (18860635480).

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

12002222120 is a wasteful number, since it uses less digits than its factorization.

12002222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42865097 (or 42865093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12002222120 its reverse (2122220021), we get a palindrome (14124442141).

The spelling of 12002222120 in words is "twelve billion, two million, two hundred twenty-two thousand, one hundred twenty".