200440011421 has 8 divisors (see below), whose sum is σ = 215863121880. Its totient is φ = 185017564992.

The previous prime is 200440011403. The next prime is 200440011433. The reversal of 200440011421 is 124110044002.

It can be written as a sum of positive squares in 4 ways, for example, as 8026188921 + 192413822500 = 89589^2 + 438650^2 .

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

It is not a de Polignac number, because 200440011421 - 2³⁷ = 63001057949 is a prime.

It is a super-2 number, since 2×200440011421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200440011481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587691 + ... + 863863.

It is an arithmetic number, because the mean of its divisors is an integer number (26982890235).

Almost surely, 2^200440011421 is an apocalyptic number.

It is an amenable number.

200440011421 is a deficient number, since it is larger than the sum of its proper divisors (15423110459).

200440011421 is a wasteful number, since it uses less digits than its factorization.

200440011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332015.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200440011421 its reverse (124110044002), we get a palindrome (324550055423).

The spelling of 200440011421 in words is "two hundred billion, four hundred forty million, eleven thousand, four hundred twenty-one".