12120211020011 has 16 divisors (see below), whose sum is σ = 12402265356288. Its totient is φ = 11839171579200.

The previous prime is 12120211019893. The next prime is 12120211020017. The reversal of 12120211020011 is 11002011202121.

It is a cyclic number.

It is not a de Polignac number, because 12120211020011 - 2¹⁴ = 12120211003627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120211020017) 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, 161930366 + ... + 162005196.

It is an arithmetic number, because the mean of its divisors is an integer number (775141584768).

Almost surely, 2^{12120211020011} is an apocalyptic number.

12120211020011 is a deficient number, since it is larger than the sum of its proper divisors (282054336277).

12120211020011 is an equidigital number, since it uses as much as digits as its factorization.

12120211020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81562.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120211020011 its reverse (11002011202121), we get a palindrome (23122222222132).

It can be divided in two parts, 121202110 and 20011, that added together give a palindrome (121222121).

The spelling of 12120211020011 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, twenty thousand, eleven".