2120210001121 has 16 divisors (see below), whose sum is σ = 2329246016640. Its totient is φ = 1920949430400.

The previous prime is 2120210001101. The next prime is 2120210001157. The reversal of 2120210001121 is 1211000120212.

It is not a de Polignac number, because 2120210001121 - 2⁹ = 2120210000609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120210001101) by changing a digit.

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, 2065821 + ... + 2916853.

It is an arithmetic number, because the mean of its divisors is an integer number (145577876040).

Almost surely, 2^{2120210001121} is an apocalyptic number.

It is an amenable number.

2120210001121 is a deficient number, since it is larger than the sum of its proper divisors (209036015519).

2120210001121 is a wasteful number, since it uses less digits than its factorization.

2120210001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856776.

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

Adding to 2120210001121 its reverse (1211000120212), we get a palindrome (3331210121333).

The spelling of 2120210001121 in words is "two trillion, one hundred twenty billion, two hundred ten million, one thousand, one hundred twenty-one".