111022222020 has 192 divisors, whose sum is σ = 323996682240. Its totient is φ = 28385667072.

The previous prime is 111022222019. The next prime is 111022222067. The reversal of 111022222020 is 20222220111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31193001 + ... + 31196559.

It is an arithmetic number, because the mean of its divisors is an integer number (1687482720).

Almost surely, 2^111022222020 is an apocalyptic number.

111022222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111022222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161998341120).

111022222020 is an abundant number, since it is smaller than the sum of its proper divisors (212974460220).

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

111022222020 is a wasteful number, since it uses less digits than its factorization.

111022222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834 (or 3832 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 111022222020 its reverse (20222220111), we get a palindrome (131244442131).

The spelling of 111022222020 in words is "one hundred eleven billion, twenty-two million, two hundred twenty-two thousand, twenty".