121101213112 has 48 divisors (see below), whose sum is σ = 252054923400. Its totient is φ = 54500952000.

The previous prime is 121101213061. The next prime is 121101213127. The reversal of 121101213112 is 211312101121.

It is a happy number.

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, 521562 + ... + 717097.

Almost surely, 2^121101213112 is an apocalyptic number.

It is an amenable number.

121101213112 is an abundant number, since it is smaller than the sum of its proper divisors (130953710288).

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

121101213112 is a wasteful number, since it uses less digits than its factorization.

121101213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238788 (or 1238773 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121101213112 its reverse (211312101121), we get a palindrome (332413314233).

The spelling of 121101213112 in words is "one hundred twenty-one billion, one hundred one million, two hundred thirteen thousand, one hundred twelve".