2121325052 has 108 divisors (see below), whose sum is σ = 4954335120. Its totient is φ = 790352640.

The previous prime is 2121325049. The next prime is 2121325061. The reversal of 2121325052 is 2505231212.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 543524 + ... + 547412.

Almost surely, 2^2121325052 is an apocalyptic number.

2121325052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121325052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2477167560).

2121325052 is an abundant number, since it is smaller than the sum of its proper divisors (2833010068).

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

2121325052 is a wasteful number, since it uses less digits than its factorization.

2121325052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2121325052 is about 46057.8446304210. The cubic root of 2121325052 is about 1284.8992440695.

Adding to 2121325052 its reverse (2505231212), we get a palindrome (4626556264).

The spelling of 2121325052 in words is "two billion, one hundred twenty-one million, three hundred twenty-five thousand, fifty-two".