102102201 has 20 divisors (see below), whose sum is σ = 154370832. Its totient is φ = 67243608.

The previous prime is 102102199. The next prime is 102102229. The reversal of 102102201 is 102201201.

It is not a de Polignac number, because 102102201 - 2¹ = 102102199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (102102241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 871 + ... + 14316.

Almost surely, 2^102102201 is an apocalyptic number.

It is an amenable number.

102102201 is a deficient number, since it is larger than the sum of its proper divisors (52268631).

102102201 is an equidigital number, since it uses as much as digits as its factorization.

102102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15282 (or 15273 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102102201 is about 10104.5633750301. The cubic root of 102102201 is about 467.3888719438.

Adding to 102102201 its reverse (102201201), we get a palindrome (204303402).

It can be divided in two parts, 102102 and 201, that multiplied together give a palindrome (20522502).

The spelling of 102102201 in words is "one hundred two million, one hundred two thousand, two hundred one".