12120112122011 has 32 divisors (see below), whose sum is σ = 13348288779840. Its totient is φ = 10953652985856.

The previous prime is 12120112121959. The next prime is 12120112122023. The reversal of 12120112122011 is 11022121102121.

It is a cyclic number.

It is not a de Polignac number, because 12120112122011 - 2⁶ = 12120112121947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120112121011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67580120 + ... + 67759226.

It is an arithmetic number, because the mean of its divisors is an integer number (417134024370).

Almost surely, 2^{12120112122011} is an apocalyptic number.

12120112122011 is a deficient number, since it is larger than the sum of its proper divisors (1228176657829).

12120112122011 is a wasteful number, since it uses less digits than its factorization.

12120112122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179903.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12120112122011 its reverse (11022121102121), we get a palindrome (23142233224132).

The spelling of 12120112122011 in words is "twelve trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, eleven".