202102213 has 4 divisors (see below), whose sum is σ = 202155840. Its totient is φ = 202048588.

The previous prime is 202102207. The next prime is 202102223. The reversal of 202102213 is 312201202.

202102213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 202102213 - 2⁹ = 202101701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202102193 and 202102202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102223) 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, 20695 + ... + 28852.

It is an arithmetic number, because the mean of its divisors is an integer number (50538960).

Almost surely, 2^202102213 is an apocalyptic number.

It is an amenable number.

202102213 is a deficient number, since it is larger than the sum of its proper divisors (53627).

202102213 is an equidigital number, since it uses as much as digits as its factorization.

202102213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53626.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 202102213 is about 14216.2657895806. The cubic root of 202102213 is about 586.8453796895.

Adding to 202102213 its reverse (312201202), we get a palindrome (514303415).

The spelling of 202102213 in words is "two hundred two million, one hundred two thousand, two hundred thirteen".