421202201 has 16 divisors (see below), whose sum is σ = 488707200. Its totient is φ = 355563648.

The previous prime is 421202161. The next prime is 421202213. The reversal of 421202201 is 102202124.

It is a cyclic number.

It is not a de Polignac number, because 421202201 - 2¹⁸ = 420940057 is a prime.

It is a super-2 number, since 2×421202201² = 354822588254488802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421202281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175115 + ... + 177503.

It is an arithmetic number, because the mean of its divisors is an integer number (30544200).

Almost surely, 2^421202201 is an apocalyptic number.

It is an amenable number.

421202201 is a deficient number, since it is larger than the sum of its proper divisors (67504999).

421202201 is a wasteful number, since it uses less digits than its factorization.

421202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 421202201 is about 20523.2112740672. The cubic root of 421202201 is about 749.6010921640.

Adding to 421202201 its reverse (102202124), we get a palindrome (523404325).

The spelling of 421202201 in words is "four hundred twenty-one million, two hundred two thousand, two hundred one".