202102100102 has 16 divisors (see below), whose sum is σ = 352140428832. Its totient is φ = 85195264320.

The previous prime is 202102100099. The next prime is 202102100117. The reversal of 202102100102 is 201001201202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 118325903 + ... + 118327610.

It is an arithmetic number, because the mean of its divisors is an integer number (22008776802).

Almost surely, 2^202102100102 is an apocalyptic number.

202102100102 is a deficient number, since it is larger than the sum of its proper divisors (150038328730).

202102100102 is a wasteful number, since it uses less digits than its factorization.

202102100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236653583.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202102100102 its reverse (201001201202), we get a palindrome (403103301304).

The spelling of 202102100102 in words is "two hundred two billion, one hundred two million, one hundred thousand, one hundred two".