2121325611 has 32 divisors (see below), whose sum is σ = 2971987200. Its totient is φ = 1344147840.

The previous prime is 2121325607. The next prime is 2121325631. The reversal of 2121325611 is 1165231212.

It is a happy number.

It is not a de Polignac number, because 2121325611 - 2² = 2121325607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121325601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1684300 + ... + 1685558.

It is an arithmetic number, because the mean of its divisors is an integer number (92874600).

Almost surely, 2^2121325611 is an apocalyptic number.

2121325611 is a deficient number, since it is larger than the sum of its proper divisors (850661589).

2121325611 is a wasteful number, since it uses less digits than its factorization.

2121325611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579.

The product of its digits is 720, while the sum is 24.

The square root of 2121325611 is about 46057.8506988765. The cubic root of 2121325611 is about 1284.8993569327.

Adding to 2121325611 its reverse (1165231212), we get a palindrome (3286556823).

The spelling of 2121325611 in words is "two billion, one hundred twenty-one million, three hundred twenty-five thousand, six hundred eleven".