121333001223 has 16 divisors (see below), whose sum is σ = 184905144576. Its totient is φ = 69326857920.

The previous prime is 121333001191. The next prime is 121333001243. The reversal of 121333001223 is 322100333121.

It is not a de Polignac number, because 121333001223 - 2⁵ = 121333001191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 121333001223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333001243) 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, 19533 + ... + 492998.

It is an arithmetic number, because the mean of its divisors is an integer number (11556571536).

Almost surely, 2^121333001223 is an apocalyptic number.

121333001223 is a deficient number, since it is larger than the sum of its proper divisors (63572143353).

121333001223 is a wasteful number, since it uses less digits than its factorization.

121333001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523814.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121333001223 its reverse (322100333121), we get a palindrome (443433334344).

The spelling of 121333001223 in words is "one hundred twenty-one billion, three hundred thirty-three million, one thousand, two hundred twenty-three".