121200220002112 has 28 divisors (see below), whose sum is σ = 240516618499456. Its totient is φ = 60597607466880.

The previous prime is 121200220002053. The next prime is 121200220002137. The reversal of 121200220002112 is 211200022002121.

It is a happy number.

121200220002112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37539714 + ... + 40640257.

Almost surely, 2^{121200220002112} is an apocalyptic number.

It is an amenable number.

121200220002112 is a deficient number, since it is larger than the sum of its proper divisors (119316398497344).

121200220002112 is an equidigital number, since it uses as much as digits as its factorization.

121200220002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78204206 (or 78204196 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121200220002112 its reverse (211200022002121), we get a palindrome (332400242004233).

The spelling of 121200220002112 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty million, two thousand, one hundred twelve".