2121252 has 24 divisors (see below), whose sum is σ = 5656896. Its totient is φ = 606048.

The previous prime is 2121241. The next prime is 2121253. The reversal of 2121252 is 2521212.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2121253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12543 + ... + 12710.

It is an arithmetic number, because the mean of its divisors is an integer number (235704).

2^2121252 is an apocalyptic number.

It is an amenable number.

2121252 is an abundant number, since it is smaller than the sum of its proper divisors (3535644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121252 is a wasteful number, since it uses less digits than its factorization.

2121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25267 (or 25265 counting only the distinct ones).

The product of its digits is 80, while the sum is 15.

The square root of 2121252 is about 1456.4518529632. The cubic root of 2121252 is about 128.4884494556.

Adding to 2121252 its reverse (2521212), we get a palindrome (4642464).

The spelling of 2121252 in words is "two million, one hundred twenty-one thousand, two hundred fifty-two".