211121110102 has 16 divisors (see below), whose sum is σ = 367019396352. Its totient is φ = 89206102440.

The previous prime is 211121110019. The next prime is 211121110117. The reversal of 211121110102 is 201011121112.

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, 106196748 + ... + 106198735.

It is an arithmetic number, because the mean of its divisors is an integer number (22938712272).

Almost surely, 2^211121110102 is an apocalyptic number.

211121110102 is a deficient number, since it is larger than the sum of its proper divisors (155898286250).

211121110102 is a wasteful number, since it uses less digits than its factorization.

211121110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212395563.

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

Adding to 211121110102 its reverse (201011121112), we get a palindrome (412132231214).

The spelling of 211121110102 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred ten thousand, one hundred two".