121101111211002 has 64 divisors (see below), whose sum is σ = 264761808966144. Its totient is φ = 36700794820800.

The previous prime is 121101111211001. The next prime is 121101111211037. The reversal of 121101111211002 is 200112111101121.

It is not an unprimeable number, because it can be changed into a prime (121101111211001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37383913 + ... + 40493939.

It is an arithmetic number, because the mean of its divisors is an integer number (4136903265096).

Almost surely, 2^{121101111211002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121101111211002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132380904483072).

121101111211002 is an abundant number, since it is smaller than the sum of its proper divisors (143660697755142).

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

121101111211002 is a wasteful number, since it uses less digits than its factorization.

121101111211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117563.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121101111211002 its reverse (200112111101121), we get a palindrome (321213222312123).

The spelling of 121101111211002 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred eleven million, two hundred eleven thousand, two".