133221000233 has 4 divisors (see below), whose sum is σ = 133228151040. Its totient is φ = 133213849428.

The previous prime is 133221000221. The next prime is 133221000373. The reversal of 133221000233 is 332000122331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133221000233 - 2⁶ = 133221000169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133221000833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3547385 + ... + 3584742.

It is an arithmetic number, because the mean of its divisors is an integer number (33307037760).

Almost surely, 2^133221000233 is an apocalyptic number.

It is an amenable number.

133221000233 is a deficient number, since it is larger than the sum of its proper divisors (7150807).

133221000233 is an equidigital number, since it uses as much as digits as its factorization.

133221000233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150806.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 133221000233 its reverse (332000122331), we get a palindrome (465221122564).

The spelling of 133221000233 in words is "one hundred thirty-three billion, two hundred twenty-one million, two hundred thirty-three", and thus it is an aban number.