121101330221 has 16 divisors (see below), whose sum is σ = 131642824320. Its totient is φ = 111095297280.

The previous prime is 121101330211. The next prime is 121101330223. The reversal of 121101330221 is 122033101121.

It is a cyclic number.

It is not a de Polignac number, because 121101330221 - 2²² = 121097135917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121101330221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101330223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1032680 + ... + 1143953.

It is an arithmetic number, because the mean of its divisors is an integer number (8227676520).

Almost surely, 2^121101330221 is an apocalyptic number.

It is an amenable number.

121101330221 is a deficient number, since it is larger than the sum of its proper divisors (10541494099).

121101330221 is a wasteful number, since it uses less digits than its factorization.

121101330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176756.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121101330221 its reverse (122033101121), we get a palindrome (243134431342).

The spelling of 121101330221 in words is "one hundred twenty-one billion, one hundred one million, three hundred thirty thousand, two hundred twenty-one".