12120022011 has 16 divisors (see below), whose sum is σ = 16543978880. Its totient is φ = 7888224960.

The previous prime is 12120022003. The next prime is 12120022049. The reversal of 12120022011 is 11022002121.

It is not a de Polignac number, because 12120022011 - 2³ = 12120022003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120022001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252855 + ... + 296943.

It is an arithmetic number, because the mean of its divisors is an integer number (1033998680).

Almost surely, 2^12120022011 is an apocalyptic number.

12120022011 is a deficient number, since it is larger than the sum of its proper divisors (4423956869).

12120022011 is a wasteful number, since it uses less digits than its factorization.

12120022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46266.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120022011 its reverse (11022002121), we get a palindrome (23142024132).

The spelling of 12120022011 in words is "twelve billion, one hundred twenty million, twenty-two thousand, eleven".