102220205 has 8 divisors (see below), whose sum is σ = 123477504. Its totient is φ = 81234000.

The previous prime is 102220193. The next prime is 102220207. The reversal of 102220205 is 502022201.

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

It is not a de Polignac number, because 102220205 - 2¹⁴ = 102203821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220207) 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, 66941 + ... + 68450.

It is an arithmetic number, because the mean of its divisors is an integer number (15434688).

Almost surely, 2^102220205 is an apocalyptic number.

It is an amenable number.

102220205 is a deficient number, since it is larger than the sum of its proper divisors (21257299).

102220205 is a wasteful number, since it uses less digits than its factorization.

102220205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135547.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 102220205 is about 10110.4008328058. The cubic root of 102220205 is about 467.5688632390.

Adding to 102220205 its reverse (502022201), we get a palindrome (604242406).

The spelling of 102220205 in words is "one hundred two million, two hundred twenty thousand, two hundred five".