202421213 has 8 divisors (see below), whose sum is σ = 205672896. Its totient is φ = 199180800.

The previous prime is 202421173. The next prime is 202421221. The reversal of 202421213 is 312124202.

202421213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202421213 - 2¹⁰ = 202420189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202421191 and 202421200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202321213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38045 + ... + 43037.

It is an arithmetic number, because the mean of its divisors is an integer number (25709112).

Almost surely, 2^202421213 is an apocalyptic number.

It is an amenable number.

202421213 is a deficient number, since it is larger than the sum of its proper divisors (3251683).

202421213 is an equidigital number, since it uses as much as digits as its factorization.

202421213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 202421213 is about 14227.4809084391. The cubic root of 202421213 is about 587.1539781044.

Adding to 202421213 its reverse (312124202), we get a palindrome (514545415).

The spelling of 202421213 in words is "two hundred two million, four hundred twenty-one thousand, two hundred thirteen".