2162121133 has 16 divisors (see below), whose sum is σ = 2257576960. Its totient is φ = 2068416000.

The previous prime is 2162121113. The next prime is 2162121151. The reversal of 2162121133 is 3311212612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2162121133 - 2²¹ = 2160023981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162121113) 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 15 ways as a sum of consecutive naturals, for example, 1070941 + ... + 1072957.

It is an arithmetic number, because the mean of its divisors is an integer number (141098560).

Almost surely, 2^2162121133 is an apocalyptic number.

It is an amenable number.

2162121133 is a deficient number, since it is larger than the sum of its proper divisors (95455827).

2162121133 is a wasteful number, since it uses less digits than its factorization.

2162121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428.

The product of its digits is 432, while the sum is 22.

The square root of 2162121133 is about 46498.6143126868. The cubic root of 2162121133 is about 1293.0838091545.

Adding to 2162121133 its reverse (3311212612), we get a palindrome (5473333745).

The spelling of 2162121133 in words is "two billion, one hundred sixty-two million, one hundred twenty-one thousand, one hundred thirty-three".