111221011022 has 8 divisors (see below), whose sum is σ = 181998018072. Its totient is φ = 50555005000.

The previous prime is 111221011001. The next prime is 111221011039. The reversal of 111221011022 is 220110122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111221011022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111221010988 and 111221011006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527750229 + ... + 2527750272.

It is an arithmetic number, because the mean of its divisors is an integer number (22749752259).

Almost surely, 2^111221011022 is an apocalyptic number.

111221011022 is a deficient number, since it is larger than the sum of its proper divisors (70777007050).

111221011022 is a wasteful number, since it uses less digits than its factorization.

111221011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055500514.

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

Adding to 111221011022 its reverse (220110122111), we get a palindrome (331331133133).

The spelling of 111221011022 in words is "one hundred eleven billion, two hundred twenty-one million, eleven thousand, twenty-two".