121112122102 has 16 divisors (see below), whose sum is σ = 184984954560. Its totient is φ = 59459423112.

The previous prime is 121112122099. The next prime is 121112122121. The reversal of 121112122102 is 201221211121.

It is a super-2 number, since 2×121112122102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210952 + ... + 2265067.

It is an arithmetic number, because the mean of its divisors is an integer number (11561559660).

Almost surely, 2^121112122102 is an apocalyptic number.

121112122102 is a deficient number, since it is larger than the sum of its proper divisors (63872832458).

121112122102 is a wasteful number, since it uses less digits than its factorization.

121112122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476267.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112122102 its reverse (201221211121), we get a palindrome (322333333223).

The spelling of 121112122102 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, one hundred two".