2120321122120 has 64 divisors (see below), whose sum is σ = 4891101894000. Its totient is φ = 826761707520.

The previous prime is 2120321122111. The next prime is 2120321122159. The reversal of 2120321122120 is 212211230212.

It can be written as a sum of positive squares in 8 ways, for example, as 449185636 + 2119871936484 = 21194^2 + 1455978^2 .

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, 1464706 + ... + 2527054.

Almost surely, 2^{2120321122120} is an apocalyptic number.

2120321122120 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 2120321122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2445550947000).

2120321122120 is an abundant number, since it is smaller than the sum of its proper divisors (2770780771880).

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

2120321122120 is a wasteful number, since it uses less digits than its factorization.

2120321122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063618 (or 1063614 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2120321122120 its reverse (212211230212), we get a palindrome (2332532352332).

The spelling of 2120321122120 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty".