121121002112 has 32 divisors (see below), whose sum is σ = 263231726400. Its totient is φ = 55055000320.

The previous prime is 121121002111. The next prime is 121121002129. The reversal of 121121002112 is 211200121121.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (121121002111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43010312 + ... + 43013127.

It is an arithmetic number, because the mean of its divisors is an integer number (8225991450).

Almost surely, 2^121121002112 is an apocalyptic number.

It is an amenable number.

121121002112 is an abundant number, since it is smaller than the sum of its proper divisors (142110724288).

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

121121002112 is an equidigital number, since it uses as much as digits as its factorization.

121121002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86023464 (or 86023452 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121121002112 its reverse (211200121121), we get a palindrome (332321123233).

The spelling of 121121002112 in words is "one hundred twenty-one billion, one hundred twenty-one million, two thousand, one hundred twelve".