2122101121 has 4 divisors (see below), whose sum is σ = 2425258432. Its totient is φ = 1818943812.

The previous prime is 2122101119. The next prime is 2122101161. The reversal of 2122101121 is 1211012212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2122101121 - 2¹ = 2122101119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122101161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151578645 + ... + 151578658.

It is an arithmetic number, because the mean of its divisors is an integer number (606314608).

Almost surely, 2^2122101121 is an apocalyptic number.

It is an amenable number.

2122101121 is a deficient number, since it is larger than the sum of its proper divisors (303157311).

2122101121 is an equidigital number, since it uses as much as digits as its factorization.

2122101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303157310.

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

The square root of 2122101121 is about 46066.2687983301. The cubic root of 2122101121 is about 1285.0559148405.

Adding to 2122101121 its reverse (1211012212), we get a palindrome (3333113333).

The spelling of 2122101121 in words is "two billion, one hundred twenty-two million, one hundred one thousand, one hundred twenty-one".