2121126 has 16 divisors (see below), whose sum is σ = 4848384. Its totient is φ = 606024.

The previous prime is 2121121. The next prime is 2121127. The reversal of 2121126 is 6211212.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121121) 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, 25210 + ... + 25293.

It is an arithmetic number, because the mean of its divisors is an integer number (303024).

2^2121126 is an apocalyptic number.

2121126 is an abundant number, since it is smaller than the sum of its proper divisors (2727258).

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

2121126 is a wasteful number, since it uses less digits than its factorization.

2121126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50515.

The product of its digits is 48, while the sum is 15.

The square root of 2121126 is about 1456.4085965140. The cubic root of 2121126 is about 128.4859053818.

Adding to 2121126 its reverse (6211212), we get a palindrome (8332338).

The spelling of 2121126 in words is "two million, one hundred twenty-one thousand, one hundred twenty-six".