202111111102 has 8 divisors (see below), whose sum is σ = 304201366056. Its totient is φ = 100710655752.

The previous prime is 202111111087. The next prime is 202111111171. The reversal of 202111111102 is 201111111202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172449168 + ... + 172450339.

It is an arithmetic number, because the mean of its divisors is an integer number (38025170757).

Almost surely, 2^202111111102 is an apocalyptic number.

202111111102 is a deficient number, since it is larger than the sum of its proper divisors (102090254954).

202111111102 is a wasteful number, since it uses less digits than its factorization.

202111111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344899802.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 202111111102 its reverse (201111111202), we get a palindrome (403222222304).

The spelling of 202111111102 in words is "two hundred two billion, one hundred eleven million, one hundred eleven thousand, one hundred two".