133220331012 has 24 divisors (see below), whose sum is σ = 310858559200. Its totient is φ = 44405188416.

The previous prime is 133220331001. The next prime is 133220331029. The reversal of 133220331012 is 210133022331.

It is a self number, because there is not a number n which added to its sum of digits gives 133220331012.

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, 179664 + ... + 546552.

Almost surely, 2^133220331012 is an apocalyptic number.

133220331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133220331012 is an abundant number, since it is smaller than the sum of its proper divisors (177638228188).

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

133220331012 is a wasteful number, since it uses less digits than its factorization.

133220331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397155 (or 397153 counting only the distinct ones).

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

Adding to 133220331012 its reverse (210133022331), we get a palindrome (343353353343).

The spelling of 133220331012 in words is "one hundred thirty-three billion, two hundred twenty million, three hundred thirty-one thousand, twelve".