121110003111221 has 8 divisors (see below), whose sum is σ = 121118958146688. Its totient is φ = 121101048432000.

The previous prime is 121110003111161. The next prime is 121110003111257. The reversal of 121110003111221 is 122111300011121.

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-121110003111221 is a prime.

It is a super-2 number, since 2×121110003111221² (a number of 29 digits) contains 22 as substring.

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 121110003111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110003111281) 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, 1188222341 + ... + 1188324261.

It is an arithmetic number, because the mean of its divisors is an integer number (15139869768336).

Almost surely, 2^{121110003111221} is an apocalyptic number.

It is an amenable number.

121110003111221 is a deficient number, since it is larger than the sum of its proper divisors (8955035467).

121110003111221 is a wasteful number, since it uses less digits than its factorization.

121110003111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178123.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 121110003111221 its reverse (122111300011121), we get a palindrome (243221303122342).

The spelling of 121110003111221 in words is "one hundred twenty-one trillion, one hundred ten billion, three million, one hundred eleven thousand, two hundred twenty-one".