12120121223222 has 32 divisors (see below), whose sum is σ = 19587390382080. Its totient is φ = 5608215344160.

The previous prime is 12120121223167. The next prime is 12120121223261. The reversal of 12120121223222 is 22232212102121.

It is a super-2 number, since 2×12120121223222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4774808 + ... + 6858500.

It is an arithmetic number, because the mean of its divisors is an integer number (612105949440).

Almost surely, 2^{12120121223222} is an apocalyptic number.

12120121223222 is a deficient number, since it is larger than the sum of its proper divisors (7467269158858).

12120121223222 is a wasteful number, since it uses less digits than its factorization.

12120121223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087828.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12120121223222 its reverse (22232212102121), we get a palindrome (34352333325343).

The spelling of 12120121223222 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-two".