2133344421 has 24 divisors (see below), whose sum is σ = 3322775456. Its totient is φ = 1311150240.

The previous prime is 2133344419. The next prime is 2133344471. The reversal of 2133344421 is 1244433312.

2133344421 is a `hidden beast` number, since 213 + 3 + 3 + 4 + 442 + 1 = 666.

It is not a de Polignac number, because 2133344421 - 2¹ = 2133344419 is a prime.

It is a super-2 number, since 2×2133344421² = 9102316837223650482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133344401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83646 + ... + 106128.

Almost surely, 2^2133344421 is an apocalyptic number.

It is an amenable number.

2133344421 is a deficient number, since it is larger than the sum of its proper divisors (1189431035).

2133344421 is a wasteful number, since it uses less digits than its factorization.

2133344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23313 (or 23310 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2133344421 is about 46188.1415625266. The cubic root of 2133344421 is about 1287.3214096837.

Adding to 2133344421 its reverse (1244433312), we get a palindrome (3377777733).

The spelling of 2133344421 in words is "two billion, one hundred thirty-three million, three hundred forty-four thousand, four hundred twenty-one".