1333223221 has 16 divisors (see below), whose sum is σ = 1521387648. Its totient is φ = 1156478400.

The previous prime is 1333223219. The next prime is 1333223233. The reversal of 1333223221 is 1223223331.

It is not a de Polignac number, because 1333223221 - 2¹ = 1333223219 is a prime.

It is a super-2 number, since 2×1333223221² = 3554968314027229682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1333223192 and 1333223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333223251) 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, 100255 + ... + 112771.

It is an arithmetic number, because the mean of its divisors is an integer number (95086728).

Almost surely, 2^1333223221 is an apocalyptic number.

1333223221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1333223221 is a deficient number, since it is larger than the sum of its proper divisors (188164427).

1333223221 is a wasteful number, since it uses less digits than its factorization.

1333223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12972.

The product of its digits is 1296, while the sum is 22.

The square root of 1333223221 is about 36513.3293606595. The cubic root of 1333223221 is about 1100.6121168880.

Adding to 1333223221 its reverse (1223223331), we get a palindrome (2556446552).

The spelling of 1333223221 in words is "one billion, three hundred thirty-three million, two hundred twenty-three thousand, two hundred twenty-one".