21334414201 has 4 divisors (see below), whose sum is σ = 21736950372. Its totient is φ = 20931878032.

The previous prime is 21334414169. The next prime is 21334414207. The reversal of 21334414201 is 10241443312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14346290176 + 6988124025 = 119776^2 + 83595^2 .

It is a cyclic number.

It is not a de Polignac number, because 21334414201 - 2⁵ = 21334414169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21334414207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201268006 + ... + 201268111.

It is an arithmetic number, because the mean of its divisors is an integer number (5434237593).

Almost surely, 2^21334414201 is an apocalyptic number.

It is an amenable number.

21334414201 is a deficient number, since it is larger than the sum of its proper divisors (402536171).

21334414201 is an equidigital number, since it uses as much as digits as its factorization.

21334414201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402536170.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21334414201 its reverse (10241443312), we get a palindrome (31575857513).

The spelling of 21334414201 in words is "twenty-one billion, three hundred thirty-four million, four hundred fourteen thousand, two hundred one".