133221012133220 has 48 divisors (see below), whose sum is σ = 308874302872128. Its totient is φ = 47860341701760.

The previous prime is 133221012133217. The next prime is 133221012133289. The reversal of 133221012133220 is 22331210122331.

It is a self number, because there is not a number n which added to its sum of digits gives 133221012133220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3647873639 + ... + 3647910158.

It is an arithmetic number, because the mean of its divisors is an integer number (6434881309836).

Almost surely, 2^{133221012133220} is an apocalyptic number.

133221012133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133221012133220 is an abundant number, since it is smaller than the sum of its proper divisors (175653290738908).

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

133221012133220 is a wasteful number, since it uses less digits than its factorization.

133221012133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295783900 (or 7295783898 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 133221012133220 its reverse (22331210122331), we get a palindrome (155552222255551).

The spelling of 133221012133220 in words is "one hundred thirty-three trillion, two hundred twenty-one billion, twelve million, one hundred thirty-three thousand, two hundred twenty".