2121332 has 6 divisors (see below), whose sum is σ = 3712338. Its totient is φ = 1060664.

The previous prime is 2121323. The next prime is 2121337. The reversal of 2121332 is 2331212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1336336 + 784996 = 1156^2 + 886^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265163 + ... + 265170.

It is an arithmetic number, because the mean of its divisors is an integer number (618723).

2^2121332 is an apocalyptic number.

It is an amenable number.

2121332 is a deficient number, since it is larger than the sum of its proper divisors (1591006).

2121332 is a wasteful number, since it uses less digits than its factorization.

2121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530337 (or 530335 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 2121332 is about 1456.4793167086. The cubic root of 2121332 is about 128.4900646883.

Adding to 2121332 its reverse (2331212), we get a palindrome (4452544).

The spelling of 2121332 in words is "two million, one hundred twenty-one thousand, three hundred thirty-two".