111100020221020 has 12 divisors (see below), whose sum is σ = 233310042464184. Its totient is φ = 44440008088400.

The previous prime is 111100020220997. The next prime is 111100020221039. The reversal of 111100020221020 is 20122020001111.

It is a super-2 number, since 2×111100020221020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777500505506 + ... + 2777500505545.

It is an arithmetic number, because the mean of its divisors is an integer number (19442503538682).

Almost surely, 2^{111100020221020} is an apocalyptic number.

111100020221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100020221020 is an abundant number, since it is smaller than the sum of its proper divisors (122210022243164).

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

111100020221020 is a wasteful number, since it uses less digits than its factorization.

111100020221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555001011060 (or 5555001011058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111100020221020 its reverse (20122020001111), we get a palindrome (131222040222131).

The spelling of 111100020221020 in words is "one hundred eleven trillion, one hundred billion, twenty million, two hundred twenty-one thousand, twenty".