121212001200112 has 40 divisors (see below), whose sum is σ = 236441491101936. Its totient is φ = 60196201414656.

The previous prime is 121212001200097. The next prime is 121212001200149. The reversal of 121212001200112 is 211002100212121.

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 7 ways as a sum of consecutive naturals, for example, 41048103 + ... + 43901830.

Almost surely, 2^{121212001200112} is an apocalyptic number.

It is an amenable number.

121212001200112 is a deficient number, since it is larger than the sum of its proper divisors (115229489901824).

121212001200112 is a wasteful number, since it uses less digits than its factorization.

121212001200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84950545 (or 84950539 counting only the distinct ones).

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

Adding to 121212001200112 its reverse (211002100212121), we get a palindrome (332214101412233).

The spelling of 121212001200112 in words is "one hundred twenty-one trillion, two hundred twelve billion, one million, two hundred thousand, one hundred twelve".