2120000021210 has 32 divisors (see below), whose sum is σ = 3898282920192. Its totient is φ = 829725029440.

The previous prime is 2120000021207. The next prime is 2120000021267. The reversal of 2120000021210 is 121200000212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120000021191 and 2120000021200.

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 15 ways as a sum of consecutive naturals, for example, 1053269 + ... + 2312871.

It is an arithmetic number, because the mean of its divisors is an integer number (121821341256).

Almost surely, 2^{2120000021210} is an apocalyptic number.

2120000021210 is a deficient number, since it is larger than the sum of its proper divisors (1778282898982).

2120000021210 is a wasteful number, since it uses less digits than its factorization.

2120000021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263238.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2120000021210 its reverse (121200000212), we get a palindrome (2241200021422).

The spelling of 2120000021210 in words is "two trillion, one hundred twenty billion, twenty-one thousand, two hundred ten".