121003310012221 has 16 divisors (see below), whose sum is σ = 149840814304384. Its totient is φ = 95151527527104.

The previous prime is 121003310012203. The next prime is 121003310012237. The reversal of 121003310012221 is 122210013300121.

It is a cyclic number.

It is not a de Polignac number, because 121003310012221 - 2²⁹ = 121002773141309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003310012251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4078840086 + ... + 4078869751.

It is an arithmetic number, because the mean of its divisors is an integer number (9365050894024).

Almost surely, 2^{121003310012221} is an apocalyptic number.

It is an amenable number.

121003310012221 is a deficient number, since it is larger than the sum of its proper divisors (28837504292163).

121003310012221 is a wasteful number, since it uses less digits than its factorization.

121003310012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157710020.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121003310012221 its reverse (122210013300121), we get a palindrome (243213323312342).

The spelling of 121003310012221 in words is "one hundred twenty-one trillion, three billion, three hundred ten million, twelve thousand, two hundred twenty-one".