111002001012020 has 48 divisors (see below), whose sum is σ = 245375223912000. Its totient is φ = 42063508247040.

The previous prime is 111002001011927. The next prime is 111002001012131. The reversal of 111002001012020 is 20210100200111.

It is a junction number, because it is equal to n+sod(n) for n = 111002001011992 and 111002001012010.

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, 39362156 + ... + 42087804.

It is an arithmetic number, because the mean of its divisors is an integer number (5111983831500).

Almost surely, 2^{111002001012020} is an apocalyptic number.

111002001012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111002001012020 is an abundant number, since it is smaller than the sum of its proper divisors (134373222899980).

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

111002001012020 is a wasteful number, since it uses less digits than its factorization.

111002001012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832848 (or 2832846 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111002001012020 its reverse (20210100200111), we get a palindrome (131212101212131).

The spelling of 111002001012020 in words is "one hundred eleven trillion, two billion, one million, twelve thousand, twenty".