2162332021 has 4 divisors (see below), whose sum is σ = 2170370700. Its totient is φ = 2154293344.

The previous prime is 2162331979. The next prime is 2162332027. The reversal of 2162332021 is 1202332612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 599711121 + 1562620900 = 24489^2 + 39530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162332021 - 2¹¹ = 2162329973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2162331983 and 2162332001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162332027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4018936 + ... + 4019473.

It is an arithmetic number, because the mean of its divisors is an integer number (542592675).

Almost surely, 2^2162332021 is an apocalyptic number.

It is an amenable number.

2162332021 is a deficient number, since it is larger than the sum of its proper divisors (8038679).

2162332021 is an equidigital number, since it uses as much as digits as its factorization.

2162332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038678.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2162332021 is about 46500.8819378730. The cubic root of 2162332021 is about 1293.1258491970.

Adding to 2162332021 its reverse (1202332612), we get a palindrome (3364664633).

The spelling of 2162332021 in words is "two billion, one hundred sixty-two million, three hundred thirty-two thousand, twenty-one".