12120012022 has 4 divisors (see below), whose sum is σ = 18180018036. Its totient is φ = 6060006010.

The previous prime is 12120011993. The next prime is 12120012043. The reversal of 12120012022 is 22021002121.

It is a happy number.

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 = 12120011993 and 12120012011.

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, 3030003004 + ... + 3030003007.

It is an arithmetic number, because the mean of its divisors is an integer number (4545004509).

Almost surely, 2^12120012022 is an apocalyptic number.

12120012022 is a deficient number, since it is larger than the sum of its proper divisors (6060006014).

12120012022 is an equidigital number, since it uses as much as digits as its factorization.

12120012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060006013.

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

Adding to 12120012022 its reverse (22021002121), we get a palindrome (34141014143).

Subtracting 12120012022 from its reverse (22021002121), we obtain a palindrome (9900990099).

The spelling of 12120012022 in words is "twelve billion, one hundred twenty million, twelve thousand, twenty-two".