2043401221 has 8 divisors (see below), whose sum is σ = 2079554400. Its totient is φ = 2007298800.

The previous prime is 2043401201. The next prime is 2043401231. The reversal of 2043401221 is 1221043402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2043401221 - 2¹⁷ = 2043270149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043401201) 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, 73675 + ... + 97543.

It is an arithmetic number, because the mean of its divisors is an integer number (259944300).

Almost surely, 2^2043401221 is an apocalyptic number.

It is an amenable number.

2043401221 is a deficient number, since it is larger than the sum of its proper divisors (36153179).

2043401221 is a wasteful number, since it uses less digits than its factorization.

2043401221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25379.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2043401221 is about 45203.9956309174. The cubic root of 2043401221 is about 1268.9695944947.

Adding to 2043401221 its reverse (1221043402), we get a palindrome (3264444623).

The spelling of 2043401221 in words is "two billion, forty-three million, four hundred one thousand, two hundred twenty-one".