2162049121 has 4 divisors (see below), whose sum is σ = 2275841200. Its totient is φ = 2048257044.

The previous prime is 2162049119. The next prime is 2162049133. The reversal of 2162049121 is 1219402612.

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 a cyclic number.

It is not a de Polignac number, because 2162049121 - 2¹ = 2162049119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2162049121.

It is not an unprimeable number, because it can be changed into a prime (2162049101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56896011 + ... + 56896048.

It is an arithmetic number, because the mean of its divisors is an integer number (568960300).

Almost surely, 2^2162049121 is an apocalyptic number.

It is an amenable number.

2162049121 is a deficient number, since it is larger than the sum of its proper divisors (113792079).

2162049121 is a wasteful number, since it uses less digits than its factorization.

2162049121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113792078.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2162049121 is about 46497.8399605831. The cubic root of 2162049121 is about 1293.0694531002.

The spelling of 2162049121 in words is "two billion, one hundred sixty-two million, forty-nine thousand, one hundred twenty-one".