133221443105 has 16 divisors (see below), whose sum is σ = 161070714000. Its totient is φ = 105775008000.

The previous prime is 133221443101. The next prime is 133221443149. The reversal of 133221443105 is 501344122331.

It can be written as a sum of positive squares in 8 ways, for example, as 7615703824 + 125605739281 = 87268^2 + 354409^2 .

It is not a de Polignac number, because 133221443105 - 2² = 133221443101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133221443101) 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, 842855 + ... + 988355.

It is an arithmetic number, because the mean of its divisors is an integer number (10066919625).

Almost surely, 2^133221443105 is an apocalyptic number.

It is an amenable number.

133221443105 is a deficient number, since it is larger than the sum of its proper divisors (27849270895).

133221443105 is a wasteful number, since it uses less digits than its factorization.

133221443105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146884.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 133221443105 its reverse (501344122331), we get a palindrome (634565565436).

The spelling of 133221443105 in words is "one hundred thirty-three billion, two hundred twenty-one million, four hundred forty-three thousand, one hundred five".