102213206 has 4 divisors (see below), whose sum is σ = 153319812. Its totient is φ = 51106602.

The previous prime is 102213191. The next prime is 102213227. The reversal of 102213206 is 602312201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25553300 + ... + 25553303.

It is an arithmetic number, because the mean of its divisors is an integer number (38329953).

Almost surely, 2^102213206 is an apocalyptic number.

102213206 is a deficient number, since it is larger than the sum of its proper divisors (51106606).

102213206 is an equidigital number, since it uses as much as digits as its factorization.

102213206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51106605.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102213206 is about 10110.0546981705. The cubic root of 102213206 is about 467.5581915420.

Adding to 102213206 its reverse (602312201), we get a palindrome (704525407).

The spelling of 102213206 in words is "one hundred two million, two hundred thirteen thousand, two hundred six".