111012422020 has 24 divisors (see below), whose sum is σ = 233135892864. Its totient is φ = 44403100896.

The previous prime is 111012421951. The next prime is 111012422021. The reversal of 111012422020 is 20224210111.

It is a junction number, because it is equal to n+sod(n) for n = 111012421985 and 111012422003.

It is not an unprimeable number, because it can be changed into a prime (111012422021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433947 + ... + 640573.

It is an arithmetic number, because the mean of its divisors is an integer number (9713995536).

Almost surely, 2^111012422020 is an apocalyptic number.

111012422020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012422020 is an abundant number, since it is smaller than the sum of its proper divisors (122123470844).

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

111012422020 is a wasteful number, since it uses less digits than its factorization.

111012422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233499 (or 233497 counting only the distinct ones).

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

Adding to 111012422020 its reverse (20224210111), we get a palindrome (131236632131).

The spelling of 111012422020 in words is "one hundred eleven billion, twelve million, four hundred twenty-two thousand, twenty".