121101212212112 has 40 divisors (see below), whose sum is σ = 260793433866240. Its totient is φ = 54007401668480.

The previous prime is 121101212212093. The next prime is 121101212212139. The reversal of 121101212212112 is 211212212101121.

It is a happy 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, 6491264912 + ... + 6491283567.

It is an arithmetic number, because the mean of its divisors is an integer number (6519835846656).

Almost surely, 2^{121101212212112} is an apocalyptic number.

It is an amenable number.

121101212212112 is an abundant number, since it is smaller than the sum of its proper divisors (139692221654128).

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

121101212212112 is a wasteful number, since it uses less digits than its factorization.

121101212212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12982548551 (or 12982548545 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121101212212112 its reverse (211212212101121), we get a palindrome (332313424313233).

The spelling of 121101212212112 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred twelve million, two hundred twelve thousand, one hundred twelve".