20111112112001 has 16 divisors (see below), whose sum is σ = 21248276168448. Its totient is φ = 19013007408000.

The previous prime is 20111112111973. The next prime is 20111112112027. The reversal of 20111112112001 is 10021121111102.

It is not a de Polignac number, because 20111112112001 - 2¹⁴ = 20111112095617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111115112001) 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, 51471155 + ... + 51860408.

It is an arithmetic number, because the mean of its divisors is an integer number (1328017260528).

Almost surely, 2^{20111112112001} is an apocalyptic number.

It is an amenable number.

20111112112001 is a deficient number, since it is larger than the sum of its proper divisors (1137164056447).

20111112112001 is a wasteful number, since it uses less digits than its factorization.

20111112112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103331752.

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

Adding to 20111112112001 its reverse (10021121111102), we get a palindrome (30132233223103).

The spelling of 20111112112001 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twelve thousand, one".