1333221231 has 8 divisors (see below), whose sum is σ = 1820985264. Its totient is φ = 867135680.

The previous prime is 1333221229. The next prime is 1333221233. The reversal of 1333221231 is 1321223331.

It is an interprime number because it is at equal distance from previous prime (1333221229) and next prime (1333221233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1333221231 - 2¹ = 1333221229 is a prime.

It is a super-2 number, since 2×1333221231² = 3554957701578310722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1333221198 and 1333221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333221233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5419476 + ... + 5419721.

It is an arithmetic number, because the mean of its divisors is an integer number (227623158).

Almost surely, 2^1333221231 is an apocalyptic number.

1333221231 is a deficient number, since it is larger than the sum of its proper divisors (487764033).

1333221231 is a wasteful number, since it uses less digits than its factorization.

1333221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10839241.

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

The square root of 1333221231 is about 36513.3021103269. The cubic root of 1333221231 is about 1100.6115692879.

Adding to 1333221231 its reverse (1321223331), we get a palindrome (2654444562).

The spelling of 1333221231 in words is "one billion, three hundred thirty-three million, two hundred twenty-one thousand, two hundred thirty-one".