111023221022011 has 4 divisors (see below), whose sum is σ = 111063200578632. Its totient is φ = 110983241465392.

The previous prime is 111023221021991. The next prime is 111023221022107. The reversal of 111023221022011 is 110220122320111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111023221022011 - 2⁴³ = 102227127999803 is a prime.

It is a super-2 number, since 2×111023221022011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111023221022011.

It is not an unprimeable number, because it can be changed into a prime (111023221020011) 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, 19989774145 + ... + 19989779698.

It is an arithmetic number, because the mean of its divisors is an integer number (27765800144658).

Almost surely, 2^{111023221022011} is an apocalyptic number.

111023221022011 is a deficient number, since it is larger than the sum of its proper divisors (39979556621).

111023221022011 is an equidigital number, since it uses as much as digits as its factorization.

111023221022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39979556620.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111023221022011 its reverse (110220122320111), we get a palindrome (221243343342122).

The spelling of 111023221022011 in words is "one hundred eleven trillion, twenty-three billion, two hundred twenty-one million, twenty-two thousand, eleven".