111022001221020 has 48 divisors (see below), whose sum is σ = 318090943040640. Its totient is φ = 28917358456896.

The previous prime is 111022001221013. The next prime is 111022001221129. The reversal of 111022001221020 is 20122100220111.

111022001221020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×111022001221020³ (a number of 43 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21515889130 + ... + 21515894289.

It is an arithmetic number, because the mean of its divisors is an integer number (6626894646680).

Almost surely, 2^{111022001221020} is an apocalyptic number.

111022001221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022001221020 is an abundant number, since it is smaller than the sum of its proper divisors (207068941819620).

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

111022001221020 is a wasteful number, since it uses less digits than its factorization.

111022001221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43031783474 (or 43031783472 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111022001221020 its reverse (20122100220111), we get a palindrome (131144101441131).

The spelling of 111022001221020 in words is "one hundred eleven trillion, twenty-two billion, one million, two hundred twenty-one thousand, twenty".