121010011011221 has 8 divisors (see below), whose sum is σ = 127478551603200. Its totient is φ = 114551429683680.

The previous prime is 121010011011193. The next prime is 121010011011251. The reversal of 121010011011221 is 122110110010121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010011011221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121010011011196 and 121010011011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010011011251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489791160 + ... + 2489839761.

It is an arithmetic number, because the mean of its divisors is an integer number (15934818950400).

Almost surely, 2^{121010011011221} is an apocalyptic number.

It is an amenable number.

121010011011221 is a deficient number, since it is larger than the sum of its proper divisors (6468540591979).

121010011011221 is a wasteful number, since it uses less digits than its factorization.

121010011011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979632219.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121010011011221 its reverse (122110110010121), we get a palindrome (243120121021342).

The spelling of 121010011011221 in words is "one hundred twenty-one trillion, ten billion, eleven million, eleven thousand, two hundred twenty-one".