12012001223011 has 16 divisors (see below), whose sum is σ = 12461522099040. Its totient is φ = 11569220582400.

The previous prime is 12012001223003. The next prime is 12012001223041. The reversal of 12012001223011 is 11032210021021.

It is a cyclic number.

It is not a de Polignac number, because 12012001223011 - 2³ = 12012001223003 is a prime.

It is a super-2 number, since 2×12012001223011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012001223041) 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, 3984595 + ... + 6316723.

It is an arithmetic number, because the mean of its divisors is an integer number (778845131190).

Almost surely, 2^{12012001223011} is an apocalyptic number.

12012001223011 is a deficient number, since it is larger than the sum of its proper divisors (449520876029).

12012001223011 is a wasteful number, since it uses less digits than its factorization.

12012001223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333574.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12012001223011 its reverse (11032210021021), we get a palindrome (23044211244032).

The spelling of 12012001223011 in words is "twelve trillion, twelve billion, one million, two hundred twenty-three thousand, eleven".