121112102 has 16 divisors (see below), whose sum is σ = 191071872. Its totient is φ = 57495360.

The previous prime is 121112093. The next prime is 121112107. The reversal of 121112102 is 201211121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15143 + ... + 21714.

It is an arithmetic number, because the mean of its divisors is an integer number (11941992).

Almost surely, 2^121112102 is an apocalyptic number.

121112102 is a deficient number, since it is larger than the sum of its proper divisors (69959770).

121112102 is a wasteful number, since it uses less digits than its factorization.

121112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36943.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 121112102 is about 11005.0943657926. The cubic root of 121112102 is about 494.7614427138.

Adding to 121112102 its reverse (201211121), we get a palindrome (322323223).

The spelling of 121112102 in words is "one hundred twenty-one million, one hundred twelve thousand, one hundred two".