2121411040 has 48 divisors (see below), whose sum is σ = 5727812832. Its totient is φ = 727340544.

The previous prime is 2121410999. The next prime is 2121411041. The reversal of 2121411040 is 401141212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121411041) 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, 945939 + ... + 948178.

It is an arithmetic number, because the mean of its divisors is an integer number (119329434).

Almost surely, 2^2121411040 is an apocalyptic number.

2121411040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121411040 is an abundant number, since it is smaller than the sum of its proper divisors (3606401792).

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

2121411040 is a wasteful number, since it uses less digits than its factorization.

2121411040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894139 (or 1894131 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2121411040 is about 46058.7780992939. The cubic root of 2121411040 is about 1284.9166049832.

Adding to 2121411040 its reverse (401141212), we get a palindrome (2522552252).

The spelling of 2121411040 in words is "two billion, one hundred twenty-one million, four hundred eleven thousand, forty".