1111112012020 has 48 divisors (see below), whose sum is σ = 2456500536000. Its totient is φ = 420991568640.

The previous prime is 1111112011993. The next prime is 1111112012033. The reversal of 1111112012020 is 202102111111.

It is a happy number.

It is a super-3 number, since 3×1111112012020³ (a number of 37 digits) contains 333 as substring.

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, 2439256 + ... + 2858704.

It is an arithmetic number, because the mean of its divisors is an integer number (51177094500).

Almost surely, 2^{1111112012020} is an apocalyptic number.

1111112012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111112012020 is an abundant number, since it is smaller than the sum of its proper divisors (1345388523980).

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

1111112012020 is a wasteful number, since it uses less digits than its factorization.

1111112012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426448 (or 426446 counting only the distinct ones).

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

Adding to 1111112012020 its reverse (202102111111), we get a palindrome (1313214123131).

Subtracting from 1111112012020 its reverse (202102111111), we obtain a palindrome (909009900909).

The spelling of 1111112012020 in words is "one trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, twenty".