1233220223321 has 4 divisors (see below), whose sum is σ = 1245430324644. Its totient is φ = 1221010122000.

The previous prime is 1233220223303. The next prime is 1233220223351.

1233220223321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1097442712921 + 135777510400 = 1047589^2 + 368480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233220223321 is a prime.

It is a super-2 number, since 2×1233220223321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233220223351) 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 3 ways as a sum of consecutive naturals, for example, 6105050510 + ... + 6105050711.

It is an arithmetic number, because the mean of its divisors is an integer number (311357581161).

Almost surely, 2^{1233220223321} is an apocalyptic number.

It is an amenable number.

1233220223321 is a deficient number, since it is larger than the sum of its proper divisors (12210101323).

1233220223321 is a wasteful number, since it uses less digits than its factorization.

1233220223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210101322.

The product of its (nonzero) digits is 5184, while the sum is 26.

It can be divided in two parts, 1233220 and 223321, that added together give a palindrome (1456541).

The spelling of 1233220223321 in words is "one trillion, two hundred thirty-three billion, two hundred twenty million, two hundred twenty-three thousand, three hundred twenty-one".