111020220011 has 4 divisors (see below), whose sum is σ = 111484740000. Its totient is φ = 110555700024.

The previous prime is 111020220007. The next prime is 111020220053. The reversal of 111020220011 is 110022020111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110022020111 = 6581 ⋅16718131.

It is a cyclic number.

It is not a de Polignac number, because 111020220011 - 2² = 111020220007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020219974 and 111020220001.

It is not an unprimeable number, because it can be changed into a prime (111020220071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232259636 + ... + 232260113.

It is an arithmetic number, because the mean of its divisors is an integer number (27871185000).

Almost surely, 2^111020220011 is an apocalyptic number.

111020220011 is a deficient number, since it is larger than the sum of its proper divisors (464519989).

111020220011 is an equidigital number, since it uses as much as digits as its factorization.

111020220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464519988.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111020220011 its reverse (110022020111), we get a palindrome (221042240122).

The spelling of 111020220011 in words is "one hundred eleven billion, twenty million, two hundred twenty thousand, eleven".