1223346433221 has 144 divisors (see below), whose sum is σ = 2000602828224. Its totient is φ = 719566848000.

The previous prime is 1223346433157. The next prime is 1223346433237.

1223346433221 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 3 + 4 + 643 + 3 + 2 + 2 + 1 = 666.

1223346433221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1223346433221 - 2⁶ = 1223346433157 is a prime.

It is a super-2 number, since 2×1223346433221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223346433291) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2236464870 + ... + 2236465416.

It is an arithmetic number, because the mean of its divisors is an integer number (13893075196).

Almost surely, 2^{1223346433221} is an apocalyptic number.

1223346433221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223346433221 is a deficient number, since it is larger than the sum of its proper divisors (777256395003).

1223346433221 is a wasteful number, since it uses less digits than its factorization.

1223346433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1010 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The spelling of 1223346433221 in words is "one trillion, two hundred twenty-three billion, three hundred forty-six million, four hundred thirty-three thousand, two hundred twenty-one".