2120321112210 has 96 divisors (see below), whose sum is σ = 6309050372352. Its totient is φ = 483978084480.

The previous prime is 2120321112199. The next prime is 2120321112233. The reversal of 2120321112210 is 122111230212.

2120321112210 is a `hidden beast` number, since 2 + 1 + 20 + 321 + 112 + 210 = 666.

It is a super-2 number, since 2×2120321112210² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1856701 + ... + 2772720.

It is an arithmetic number, because the mean of its divisors is an integer number (65719274712).

Almost surely, 2^{2120321112210} is an apocalyptic number.

2120321112210 is an abundant number, since it is smaller than the sum of its proper divisors (4188729260142).

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

2120321112210 is a wasteful number, since it uses less digits than its factorization.

2120321112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630168 (or 4630165 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2120321112210 its reverse (122111230212), we get a palindrome (2242432342422).

The spelling of 2120321112210 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, one hundred twelve thousand, two hundred ten".