421113202201 has 4 divisors (see below), whose sum is σ = 429058734372. Its totient is φ = 413167670032.

The previous prime is 421113202199. The next prime is 421113202241. The reversal of 421113202201 is 102202311124.

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 212516390025 + 208596812176 = 460995^2 + 456724^2 .

It is a cyclic number.

It is not a de Polignac number, because 421113202201 - 2¹ = 421113202199 is a prime.

It is a super-2 number, since 2×421113202201² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421113202241) 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, 3972766006 + ... + 3972766111.

It is an arithmetic number, because the mean of its divisors is an integer number (107264683593).

Almost surely, 2^421113202201 is an apocalyptic number.

It is an amenable number.

421113202201 is a deficient number, since it is larger than the sum of its proper divisors (7945532171).

421113202201 is an equidigital number, since it uses as much as digits as its factorization.

421113202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945532170.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 421113202201 its reverse (102202311124), we get a palindrome (523315513325).

The spelling of 421113202201 in words is "four hundred twenty-one billion, one hundred thirteen million, two hundred two thousand, two hundred one".