12020001111220 has 48 divisors (see below), whose sum is σ = 25622805656448. Its totient is φ = 4735489207680.

The previous prime is 12020001111119. The next prime is 12020001111233. The reversal of 12020001111220 is 2211110002021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020001111220.

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, 7792530 + ... + 9206710.

It is an arithmetic number, because the mean of its divisors is an integer number (533808451176).

Almost surely, 2^{12020001111220} is an apocalyptic number.

12020001111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020001111220 is an abundant number, since it is smaller than the sum of its proper divisors (13602804545228).

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

12020001111220 is a wasteful number, since it uses less digits than its factorization.

12020001111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420600 (or 1420598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020001111220 its reverse (2211110002021), we get a palindrome (14231111113241).

The spelling of 12020001111220 in words is "twelve trillion, twenty billion, one million, one hundred eleven thousand, two hundred twenty".