421322400201 has 4 divisors (see below), whose sum is σ = 561763200272. Its totient is φ = 280881600132.

The previous prime is 421322400193. The next prime is 421322400253. The reversal of 421322400201 is 102004223124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 421322400201 - 2³ = 421322400193 is a prime.

It is a super-2 number, since 2×421322400201² (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 (421322400101) 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, 70220400031 + ... + 70220400036.

It is an arithmetic number, because the mean of its divisors is an integer number (140440800068).

Almost surely, 2^421322400201 is an apocalyptic number.

It is an amenable number.

421322400201 is a deficient number, since it is larger than the sum of its proper divisors (140440800071).

421322400201 is a wasteful number, since it uses less digits than its factorization.

421322400201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140440800070.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 421322400201 its reverse (102004223124), we get a palindrome (523326623325).

The spelling of 421322400201 in words is "four hundred twenty-one billion, three hundred twenty-two million, four hundred thousand, two hundred one".