111220000011 has 12 divisors (see below), whose sum is σ = 160655280240. Its totient is φ = 74144742480.

The previous prime is 111219999991. The next prime is 111220000037. The reversal of 111220000011 is 110000022111.

It is a happy number.

It is not a de Polignac number, because 111220000011 - 2⁷ = 111219999883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111219999948 and 111220000002.

It is not an unprimeable number, because it can be changed into a prime (111220000061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265146 + ... + 541056.

It is an arithmetic number, because the mean of its divisors is an integer number (13387940020).

Almost surely, 2^111220000011 is an apocalyptic number.

111220000011 is a deficient number, since it is larger than the sum of its proper divisors (49435280229).

111220000011 is a wasteful number, since it uses less digits than its factorization.

111220000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320706 (or 320703 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111220000011 its reverse (110000022111), we get a palindrome (221220022122).

The spelling of 111220000011 in words is "one hundred eleven billion, two hundred twenty million, eleven", and thus it is an aban number.