111022221011020 has 72 divisors (see below), whose sum is σ = 257569504525872. Its totient is φ = 40166783986560.

The previous prime is 111022221010963. The next prime is 111022221011021. The reversal of 111022221011020 is 20110122220111.

It is a super-2 number, since 2×111022221011020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111022221010985 and 111022221011003.

It is not an unprimeable number, because it can be changed into a prime (111022221011021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115962222 + ... + 116915701.

It is an arithmetic number, because the mean of its divisors is an integer number (3577354229526).

Almost surely, 2^{111022221011020} is an apocalyptic number.

111022221011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022221011020 is an abundant number, since it is smaller than the sum of its proper divisors (146547283514852).

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

111022221011020 is a wasteful number, since it uses less digits than its factorization.

111022221011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232878151 (or 232878138 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111022221011020 its reverse (20110122220111), we get a palindrome (131132343231131).

The spelling of 111022221011020 in words is "one hundred eleven trillion, twenty-two billion, two hundred twenty-one million, eleven thousand, twenty".