111210111002020 has 24 divisors (see below), whose sum is σ = 233541441718200. Its totient is φ = 44484004664832.

The previous prime is 111210111001999. The next prime is 111210111002051. The reversal of 111210111002020 is 20200111012111.

It is a happy number.

111210111002020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 32002282587136 + 79207828414884 = 5657056^2 + 8899878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32453196 + ... + 35715964.

It is an arithmetic number, because the mean of its divisors is an integer number (9730893404925).

Almost surely, 2^{111210111002020} is an apocalyptic number.

111210111002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210111002020 is an abundant number, since it is smaller than the sum of its proper divisors (122331330716180).

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

111210111002020 is a wasteful number, since it uses less digits than its factorization.

111210111002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4967007 (or 4967005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111210111002020 its reverse (20200111012111), we get a palindrome (131410222014131).

The spelling of 111210111002020 in words is "one hundred eleven trillion, two hundred ten billion, one hundred eleven million, two thousand, twenty".