202102102102102 has 16 divisors (see below), whose sum is σ = 310724142221232. Its totient is φ = 98557253863200.

The previous prime is 202102102102057. The next prime is 202102102102139. The reversal of 202102102102102 is 201201201201202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7466445093 + ... + 7466472160.

It is an arithmetic number, because the mean of its divisors is an integer number (19420258888827).

Almost surely, 2^{202102102102102} is an apocalyptic number.

202102102102102 is a deficient number, since it is larger than the sum of its proper divisors (108622040119130).

202102102102102 is a wasteful number, since it uses less digits than its factorization.

202102102102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14932917423.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202102102102102 its reverse (201201201201202), we get a palindrome (403303303303304).

The spelling of 202102102102102 in words is "two hundred two trillion, one hundred two billion, one hundred two million, one hundred two thousand, one hundred two".