121213230033 has 16 divisors (see below), whose sum is σ = 184814643200. Its totient is φ = 69223914576.

The previous prime is 121213229999. The next prime is 121213230041. The reversal of 121213230033 is 330032312121.

It is not a de Polignac number, because 121213230033 - 2⁸ = 121213229777 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121213229991 and 121213230009.

It is not an unprimeable number, because it can be changed into a prime (121213230533) 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, 1662985 + ... + 1734342.

It is an arithmetic number, because the mean of its divisors is an integer number (11550915200).

Almost surely, 2^121213230033 is an apocalyptic number.

It is an amenable number.

121213230033 is a deficient number, since it is larger than the sum of its proper divisors (63601413167).

121213230033 is a wasteful number, since it uses less digits than its factorization.

121213230033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399036.

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

Adding to 121213230033 its reverse (330032312121), we get a palindrome (451245542154).

The spelling of 121213230033 in words is "one hundred twenty-one billion, two hundred thirteen million, two hundred thirty thousand, thirty-three".