210102201010 has 24 divisors (see below), whose sum is σ = 409512814020. Its totient is φ = 77576196672.

The previous prime is 210102200989. The next prime is 210102201013. The reversal of 210102201010 is 10102201012.

It can be written as a sum of positive squares in 6 ways, for example, as 28344079449 + 181758121561 = 168357^2 + 426331^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (210102201013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62158725 + ... + 62162104.

Almost surely, 2^210102201010 is an apocalyptic number.

210102201010 is a deficient number, since it is larger than the sum of its proper divisors (199410613010).

210102201010 is a wasteful number, since it uses less digits than its factorization.

210102201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124320862 (or 124320849 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210102201010 its reverse (10102201012), we get a palindrome (220204402022).

The spelling of 210102201010 in words is "two hundred ten billion, one hundred two million, two hundred one thousand, ten".