20111012120111 has 8 divisors (see below), whose sum is σ = 22030320333648. Its totient is φ = 18206876304000.

The previous prime is 20111012120081. The next prime is 20111012120113. The reversal of 20111012120111 is 11102121011102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20111012120111 - 2¹⁴ = 20111012103727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111012120113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793096580 + ... + 3793101881.

It is an arithmetic number, because the mean of its divisors is an integer number (2753790041706).

Almost surely, 2^{20111012120111} is an apocalyptic number.

20111012120111 is a deficient number, since it is larger than the sum of its proper divisors (1919308213537).

20111012120111 is a wasteful number, since it uses less digits than its factorization.

20111012120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586198713.

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

Adding to 20111012120111 its reverse (11102121011102), we get a palindrome (31213133131213).

The spelling of 20111012120111 in words is "twenty trillion, one hundred eleven billion, twelve million, one hundred twenty thousand, one hundred eleven".