2120121122 has 12 divisors (see below), whose sum is σ = 3699395190. Its totient is φ = 908623296.

The previous prime is 2120121097. The next prime is 2120121139. The reversal of 2120121122 is 2211210212.

It can be written as a sum of positive squares in only one way, i.e., 2106718201 + 13402921 = 45899^2 + 3661^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2120121097 and 2120121106.

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 5 ways as a sum of consecutive naturals, for example, 10816847 + ... + 10817042.

Almost surely, 2^2120121122 is an apocalyptic number.

2120121122 is a deficient number, since it is larger than the sum of its proper divisors (1579274068).

2120121122 is a wasteful number, since it uses less digits than its factorization.

2120121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21633905 (or 21633898 counting only the distinct ones).

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

The square root of 2120121122 is about 46044.7730149688. The cubic root of 2120121122 is about 1284.6561222081.

Adding to 2120121122 its reverse (2211210212), we get a palindrome (4331331334).

The spelling of 2120121122 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".