2121102122 has 8 divisors (see below), whose sum is σ = 3193481700. Its totient is φ = 1056608224.

The previous prime is 2121102103. The next prime is 2121102131. The reversal of 2121102122 is 2212011212.

It can be written as a sum of positive squares in 2 ways, for example, as 1695051241 + 426050881 = 41171^2 + 20641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121102097 and 2121102106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1970747 + ... + 1971822.

Almost surely, 2^2121102122 is an apocalyptic number.

2121102122 is a deficient number, since it is larger than the sum of its proper divisors (1072379578).

2121102122 is a wasteful number, since it uses less digits than its factorization.

2121102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942840.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121102122 is about 46055.4244579289. The cubic root of 2121102122 is about 1284.8542324822.

Adding to 2121102122 its reverse (2212011212), we get a palindrome (4333113334).

The spelling of 2121102122 in words is "two billion, one hundred twenty-one million, one hundred two thousand, one hundred twenty-two".