121221110333 has 16 divisors (see below), whose sum is σ = 130849551360. Its totient is φ = 111872706816.

The previous prime is 121221110317. The next prime is 121221110347. The reversal of 121221110333 is 333011122121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121221110333 - 2⁴ = 121221110317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221110363) 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, 1546616 + ... + 1623102.

It is an arithmetic number, because the mean of its divisors is an integer number (8178096960).

Almost surely, 2^121221110333 is an apocalyptic number.

It is an amenable number.

121221110333 is a deficient number, since it is larger than the sum of its proper divisors (9628441027).

121221110333 is a wasteful number, since it uses less digits than its factorization.

121221110333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78316.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121221110333 its reverse (333011122121), we get a palindrome (454232232454).

The spelling of 121221110333 in words is "one hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand, three hundred thirty-three".