2021201211120 has 960 divisors, whose sum is σ = 8015130998784. Its totient is φ = 412244951040.

The previous prime is 2021201211091. The next prime is 2021201211131. The reversal of 2021201211120 is 211121021202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2021201211120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1901411709 + ... + 1901412771.

Almost surely, 2^{2021201211120} is an apocalyptic number.

2021201211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021201211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4007565499392).

2021201211120 is an abundant number, since it is smaller than the sum of its proper divisors (5993929787664).

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

2021201211120 is a wasteful number, since it uses less digits than its factorization.

2021201211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021201211120 its reverse (211121021202), we get a palindrome (2232322232322).

The spelling of 2021201211120 in words is "two trillion, twenty-one billion, two hundred one million, two hundred eleven thousand, one hundred twenty".