20112110222011 has 16 divisors (see below), whose sum is σ = 20695691016000. Its totient is φ = 19537886102400.

The previous prime is 20112110221997. The next prime is 20112110222051. The reversal of 20112110222011 is 11022201121102.

It is a cyclic number.

It is not a de Polignac number, because 20112110222011 - 2³⁵ = 20077750483643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112110222051) 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, 2795236 + ... + 6930913.

It is an arithmetic number, because the mean of its divisors is an integer number (1293480688500).

Almost surely, 2^{20112110222011} is an apocalyptic number.

20112110222011 is a deficient number, since it is larger than the sum of its proper divisors (583580793989).

20112110222011 is a wasteful number, since it uses less digits than its factorization.

20112110222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9726630.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112110222011 its reverse (11022201121102), we get a palindrome (31134311343113).

The spelling of 20112110222011 in words is "twenty trillion, one hundred twelve billion, one hundred ten million, two hundred twenty-two thousand, eleven".