202422421 has 8 divisors (see below), whose sum is σ = 203924160. Its totient is φ = 200926752.

The previous prime is 202422419. The next prime is 202422427. The reversal of 202422421 is 124224202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202422421 - 2¹ = 202422419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202422427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81090 + ... + 83548.

It is an arithmetic number, because the mean of its divisors is an integer number (25490520).

Almost surely, 2^202422421 is an apocalyptic number.

It is an amenable number.

202422421 is a deficient number, since it is larger than the sum of its proper divisors (1501739).

202422421 is a wasteful number, since it uses less digits than its factorization.

202422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 202422421 is about 14227.5233614287. The cubic root of 202422421 is about 587.1551460989.

Adding to 202422421 its reverse (124224202), we get a palindrome (326646623).

The spelling of 202422421 in words is "two hundred two million, four hundred twenty-two thousand, four hundred twenty-one".