121021212002112 has 84 divisors (see below), whose sum is σ = 346899226914916. Its totient is φ = 40338802206720.

The previous prime is 121021212002099. The next prime is 121021212002129. The reversal of 121021212002112 is 211200212120121.

121021212002112 is a `hidden beast` number, since 1 + 210 + 21 + 21 + 200 + 211 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68428895774976 + 52592316227136 = 8272176^2 + 7252056^2 .

It is a super-2 number, since 2×121021212002112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 10391628 + ... + 18709044.

Almost surely, 2^{121021212002112} is an apocalyptic number.

121021212002112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121021212002112 is an abundant number, since it is smaller than the sum of its proper divisors (225878014912804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121021212002112 is a wasteful number, since it uses less digits than its factorization.

121021212002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342696 (or 8342683 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121021212002112 its reverse (211200212120121), we get a palindrome (332221424122233).

The spelling of 121021212002112 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twelve million, two thousand, one hundred twelve".