421202 has 4 divisors (see below), whose sum is σ = 631806. Its totient is φ = 210600.

The previous prime is 421189. The next prime is 421207. The reversal of 421202 is 202124.

It is a Cunningham number, because it is equal to 649²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 421201 + 1 = 649^2 + 1^2 .

It is a super-2 number, since 2×421202² = 354822249608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105299 + ... + 105302.

2⁴²¹²⁰² is an apocalyptic number.

421202 is a deficient number, since it is larger than the sum of its proper divisors (210604).

421202 is a wasteful number, since it uses less digits than its factorization.

421202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210603.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 421202 is about 649.0007704156. Note that the first 3 decimals coincide. The cubic root of 421202 is about 74.9600972926.

Adding to 421202 its reverse (202124), we get a palindrome (623326).

The spelling of 421202 in words is "four hundred twenty-one thousand, two hundred two", and thus it is an iban number.