121100111102 has 16 divisors (see below), whose sum is σ = 193067122560. Its totient is φ = 56806284312.

The previous prime is 121100111081. The next prime is 121100111113. The reversal of 121100111102 is 201111001121.

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, 15466208 + ... + 15474035.

It is an arithmetic number, because the mean of its divisors is an integer number (12066695160).

Almost surely, 2^121100111102 is an apocalyptic number.

121100111102 is a deficient number, since it is larger than the sum of its proper divisors (71967011458).

121100111102 is a wasteful number, since it uses less digits than its factorization.

121100111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30940367.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121100111102 its reverse (201111001121), we get a palindrome (322211112223).

The spelling of 121100111102 in words is "one hundred twenty-one billion, one hundred million, one hundred eleven thousand, one hundred two".