1112020021220 has 96 divisors (see below), whose sum is σ = 2418479078400. Its totient is φ = 429317504000.

The previous prime is 1112020021219. The next prime is 1112020021237. The reversal of 1112020021220 is 221200202111.

It is a super-3 number, since 3×1112020021220³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112020021195 and 1112020021204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12720821 + ... + 12807939.

It is an arithmetic number, because the mean of its divisors is an integer number (25192490400).

Almost surely, 2^{1112020021220} is an apocalyptic number.

1112020021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112020021220 is an abundant number, since it is smaller than the sum of its proper divisors (1306459057180).

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

1112020021220 is a wasteful number, since it uses less digits than its factorization.

1112020021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87389 (or 87387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1112020021220 its reverse (221200202111), we get a palindrome (1333220223331).

The spelling of 1112020021220 in words is "one trillion, one hundred twelve billion, twenty million, twenty-one thousand, two hundred twenty".