111021022220 has 12 divisors (see below), whose sum is σ = 233144146704. Its totient is φ = 44408408880.

The previous prime is 111021022193. The next prime is 111021022283. The reversal of 111021022220 is 22220120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021022195 and 111021022204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775525536 + ... + 2775525575.

It is an arithmetic number, because the mean of its divisors is an integer number (19428678892).

Almost surely, 2^111021022220 is an apocalyptic number.

111021022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021022220 is an abundant number, since it is smaller than the sum of its proper divisors (122123124484).

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

111021022220 is a wasteful number, since it uses less digits than its factorization.

111021022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551051120 (or 5551051118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111021022220 its reverse (22220120111), we get a palindrome (133241142331).

The spelling of 111021022220 in words is "one hundred eleven billion, twenty-one million, twenty-two thousand, two hundred twenty".