111111213022 has 4 divisors (see below), whose sum is σ = 166666819536. Its totient is φ = 55555606510.

The previous prime is 111111212977. The next prime is 111111213079. The reversal of 111111213022 is 220312111111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220312111111 = 19 ⋅11595374269.

It is a junction number, because it is equal to n+sod(n) for n = 111111212987 and 111111213005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777803254 + ... + 27777803257.

It is an arithmetic number, because the mean of its divisors is an integer number (41666704884).

Almost surely, 2^111111213022 is an apocalyptic number.

111111213022 is a deficient number, since it is larger than the sum of its proper divisors (55555606514).

111111213022 is an equidigital number, since it uses as much as digits as its factorization.

111111213022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555606513.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111111213022 its reverse (220312111111), we get a palindrome (331423324133).

The spelling of 111111213022 in words is "one hundred eleven billion, one hundred eleven million, two hundred thirteen thousand, twenty-two".