20110012101211 has 16 divisors (see below), whose sum is σ = 20802344442880. Its totient is φ = 19420425591840.

The previous prime is 20110012101209. The next prime is 20110012101229. The reversal of 20110012101211 is 11210121001102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110012101211 - 2¹ = 20110012101209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110012101191 and 20110012101200.

It is not an unprimeable number, because it can be changed into a prime (20110012102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62733640 + ... + 63053386.

It is an arithmetic number, because the mean of its divisors is an integer number (1300146527680).

Almost surely, 2^{20110012101211} is an apocalyptic number.

20110012101211 is a deficient number, since it is larger than the sum of its proper divisors (692332341669).

20110012101211 is a wasteful number, since it uses less digits than its factorization.

20110012101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324034.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20110012101211 its reverse (11210121001102), we get a palindrome (31320133102313).

The spelling of 20110012101211 in words is "twenty trillion, one hundred ten billion, twelve million, one hundred one thousand, two hundred eleven".