12120040222 has 4 divisors (see below), whose sum is σ = 18180060336. Its totient is φ = 6060020110.

The previous prime is 12120040211. The next prime is 12120040237. The reversal of 12120040222 is 22204002121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12120040196 and 12120040205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030010054 + ... + 3030010057.

It is an arithmetic number, because the mean of its divisors is an integer number (4545015084).

Almost surely, 2^12120040222 is an apocalyptic number.

12120040222 is a deficient number, since it is larger than the sum of its proper divisors (6060020114).

12120040222 is an equidigital number, since it uses as much as digits as its factorization.

12120040222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060020113.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12120040222 its reverse (22204002121), we get a palindrome (34324042343).

The spelling of 12120040222 in words is "twelve billion, one hundred twenty million, forty thousand, two hundred twenty-two".