121021330213233 has 16 divisors (see below), whose sum is σ = 189837380727360. Its totient is φ = 75934952290368.

The previous prime is 121021330213229. The next prime is 121021330213297. The reversal of 121021330213233 is 332312033120121.

121021330213233 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 2 + 1 + 330 + 2 + 1 + 323 + 3 = 666.

It is not a de Polignac number, because 121021330213233 - 2² = 121021330213229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 121021330213197 and 121021330213206.

It is not an unprimeable number, because it can be changed into a prime (121021330213933) 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, 131831513935 + ... + 131831514852.

It is an arithmetic number, because the mean of its divisors is an integer number (11864836295460).

Almost surely, 2^{121021330213233} is an apocalyptic number.

It is an amenable number.

121021330213233 is a deficient number, since it is larger than the sum of its proper divisors (68816050514127).

121021330213233 is a wasteful number, since it uses less digits than its factorization.

121021330213233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263663028813 (or 263663028807 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 121021330213233 its reverse (332312033120121), we get a palindrome (453333363333354).

The spelling of 121021330213233 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred thirty million, two hundred thirteen thousand, two hundred thirty-three".