1111200012020 has 48 divisors (see below), whose sum is σ = 2669285162880. Its totient is φ = 380639270784.

The previous prime is 1111200011989. The next prime is 1111200012239. The reversal of 1111200012020 is 202100021111.

It is a junction number, because it is equal to n+sod(n) for n = 1111200011992 and 1111200012010.

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, 3423254 + ... + 3733773.

It is an arithmetic number, because the mean of its divisors is an integer number (55610107560).

Almost surely, 2^{1111200012020} is an apocalyptic number.

1111200012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111200012020 is an abundant number, since it is smaller than the sum of its proper divisors (1558085150860).

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

1111200012020 is a wasteful number, since it uses less digits than its factorization.

1111200012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158152 (or 7158150 counting only the distinct ones).

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

Adding to 1111200012020 its reverse (202100021111), we get a palindrome (1313300033131).

Subtracting from 1111200012020 its reverse (202100021111), we obtain a palindrome (909099990909).

The spelling of 1111200012020 in words is "one trillion, one hundred eleven billion, two hundred million, twelve thousand, twenty".