1233220033221 has 12 divisors (see below), whose sum is σ = 1807363795776. Its totient is φ = 747406080520.

The previous prime is 1233220033159. The next prime is 1233220033271. The reversal of 1233220033221 is 1223300223321.

It is not a de Polignac number, because 1233220033221 - 2¹⁷ = 1233219902149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1233220033191 and 1233220033200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233220033271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1698649821 + ... + 1698650546.

It is an arithmetic number, because the mean of its divisors is an integer number (150613649648).

Almost surely, 2^{1233220033221} is an apocalyptic number.

1233220033221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1233220033221 is a deficient number, since it is larger than the sum of its proper divisors (574143762555).

1233220033221 is a wasteful number, since it uses less digits than its factorization.

1233220033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397300392 (or 3397300381 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1233220033221 its reverse (1223300223321), we get a palindrome (2456520256542).

The spelling of 1233220033221 in words is "one trillion, two hundred thirty-three billion, two hundred twenty million, thirty-three thousand, two hundred twenty-one".