111122202222 has 24 divisors (see below), whose sum is σ = 241446838464. Its totient is φ = 36935800704.

The previous prime is 111122202209. The next prime is 111122202241. The reversal of 111122202222 is 222202221111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111122202195 and 111122202204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8737918 + ... + 8750625.

It is an arithmetic number, because the mean of its divisors is an integer number (10060284936).

Almost surely, 2^111122202222 is an apocalyptic number.

111122202222 is an abundant number, since it is smaller than the sum of its proper divisors (130324636242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111122202222 is a wasteful number, since it uses less digits than its factorization.

111122202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488904 (or 17488901 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111122202222 its reverse (222202221111), we get a palindrome (333324423333).

The spelling of 111122202222 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-two".