111220010222220 has 96 divisors (see below), whose sum is σ = 348659167127040. Its totient is φ = 29432267317440.

The previous prime is 111220010222201. The next prime is 111220010222261. The reversal of 111220010222220 is 22222010022111.

It is a happy number.

111220010222220 is a `hidden beast` number, since 1 + 1 + 1 + 220 + 0 + 1 + 0 + 222 + 220 = 666.

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 = 111220010222193 and 111220010222202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786047512 + ... + 786188991.

It is an arithmetic number, because the mean of its divisors is an integer number (3631866324240).

Almost surely, 2^{111220010222220} is an apocalyptic number.

111220010222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220010222220 is an abundant number, since it is smaller than the sum of its proper divisors (237439156904820).

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

111220010222220 is a wasteful number, since it uses less digits than its factorization.

111220010222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572236652 (or 1572236644 counting only the distinct ones).

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

Adding to 111220010222220 its reverse (22222010022111), we get a palindrome (133442020244331).

The spelling of 111220010222220 in words is "one hundred eleven trillion, two hundred twenty billion, ten million, two hundred twenty-two thousand, two hundred twenty".