111012222220 has 12 divisors (see below), whose sum is σ = 233125666704. Its totient is φ = 44404888880.

The previous prime is 111012222187. The next prime is 111012222253. The reversal of 111012222220 is 22222210111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111012222187) and next prime (111012222253).

It is a junction number, because it is equal to n+sod(n) for n = 111012222194 and 111012222203.

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, 2775305536 + ... + 2775305575.

It is an arithmetic number, because the mean of its divisors is an integer number (19427138892).

Almost surely, 2^111012222220 is an apocalyptic number.

111012222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012222220 is an abundant number, since it is smaller than the sum of its proper divisors (122113444484).

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

111012222220 is a wasteful number, since it uses less digits than its factorization.

111012222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550611120 (or 5550611118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111012222220 its reverse (22222210111), we get a palindrome (133234432331).

The spelling of 111012222220 in words is "one hundred eleven billion, twelve million, two hundred twenty-two thousand, two hundred twenty".