210102201 has 16 divisors (see below), whose sum is σ = 329572800. Its totient is φ = 131828544.

The previous prime is 210102197. The next prime is 210102203. The reversal of 210102201 is 102201012.

It is not a de Polignac number, because 210102201 - 2² = 210102197 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 (210102203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228411 + ... + 229328.

It is an arithmetic number, because the mean of its divisors is an integer number (20598300).

Almost surely, 2^210102201 is an apocalyptic number.

It is an amenable number.

210102201 is a deficient number, since it is larger than the sum of its proper divisors (119470599).

210102201 is a wasteful number, since it uses less digits than its factorization.

210102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457765 (or 457759 counting only the distinct ones).

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

The square root of 210102201 is about 14494.9025867717. The cubic root of 210102201 is about 594.4886042044.

Adding to 210102201 its reverse (102201012), we get a palindrome (312303213).

The spelling of 210102201 in words is "two hundred ten million, one hundred two thousand, two hundred one".