111220200120011 has 16 divisors (see below), whose sum is σ = 113392440302400. Its totient is φ = 109050711963648.

The previous prime is 111220200119981. The next prime is 111220200120079. The reversal of 111220200120011 is 110021002022111.

It is a cyclic number.

It is not a de Polignac number, because 111220200120011 - 2³⁸ = 110945322213067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220200120511) 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, 579269435 + ... + 579461403.

It is an arithmetic number, because the mean of its divisors is an integer number (7087027518900).

Almost surely, 2^{111220200120011} is an apocalyptic number.

111220200120011 is a deficient number, since it is larger than the sum of its proper divisors (2172240182389).

111220200120011 is a wasteful number, since it uses less digits than its factorization.

111220200120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199078.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111220200120011 its reverse (110021002022111), we get a palindrome (221241202142122).

The spelling of 111220200120011 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred million, one hundred twenty thousand, eleven".