121221211203233 has 8 divisors (see below), whose sum is σ = 121385731981416. Its totient is φ = 121056704150400.

The previous prime is 121221211203199. The next prime is 121221211203251. The reversal of 121221211203233 is 332302112122121.

It can be written as a sum of positive squares in 4 ways, for example, as 875659878289 + 120345551324944 = 935767^2 + 10970212^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121221211203233 - 2²⁰ = 121221210154657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121221211203133) 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, 14306663 + ... + 21145283.

It is an arithmetic number, because the mean of its divisors is an integer number (15173216497677).

Almost surely, 2^{121221211203233} is an apocalyptic number.

It is an amenable number.

121221211203233 is a deficient number, since it is larger than the sum of its proper divisors (164520778183).

121221211203233 is an equidigital number, since it uses as much as digits as its factorization.

121221211203233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862675.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 121221211203233 its reverse (332302112122121), we get a palindrome (453523323325354).

The spelling of 121221211203233 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred eleven million, two hundred three thousand, two hundred thirty-three".