20110110212111 has 32 divisors (see below), whose sum is σ = 22098807244800. Its totient is φ = 18234386362080.

The previous prime is 20110110212099. The next prime is 20110110212147. The reversal of 20110110212111 is 11121201101102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110110212111 is a prime.

It is a super-2 number, since 2×20110110212111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110110212411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14320400 + ... + 15661866.

It is an arithmetic number, because the mean of its divisors is an integer number (690587726400).

Almost surely, 2^{20110110212111} is an apocalyptic number.

20110110212111 is a deficient number, since it is larger than the sum of its proper divisors (1988697032689).

20110110212111 is a wasteful number, since it uses less digits than its factorization.

20110110212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341899.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20110110212111 its reverse (11121201101102), we get a palindrome (31231311313213).

The spelling of 20110110212111 in words is "twenty trillion, one hundred ten billion, one hundred ten million, two hundred twelve thousand, one hundred eleven".