133221104512 has 64 divisors (see below), whose sum is σ = 274370065200. Its totient is φ = 64389427200.

The previous prime is 133221104441. The next prime is 133221104593. The reversal of 133221104512 is 215401122331.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455587 + ... + 688477.

Almost surely, 2^133221104512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133221104512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137185032600).

133221104512 is an abundant number, since it is smaller than the sum of its proper divisors (141148960688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133221104512 is a wasteful number, since it uses less digits than its factorization.

133221104512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233055 (or 233043 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 133221104512 its reverse (215401122331), we get a palindrome (348622226843).

The spelling of 133221104512 in words is "one hundred thirty-three billion, two hundred twenty-one million, one hundred four thousand, five hundred twelve".