133032112221 has 4 divisors (see below), whose sum is σ = 177376149632. Its totient is φ = 88688074812.

The previous prime is 133032112219. The next prime is 133032112237. The reversal of 133032112221 is 122211230331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122211230331 = 3 ⋅40737076777.

It is not a de Polignac number, because 133032112221 - 2¹ = 133032112219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133032112121) 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, 22172018701 + ... + 22172018706.

It is an arithmetic number, because the mean of its divisors is an integer number (44344037408).

Almost surely, 2^133032112221 is an apocalyptic number.

It is an amenable number.

133032112221 is a deficient number, since it is larger than the sum of its proper divisors (44344037411).

133032112221 is an equidigital number, since it uses as much as digits as its factorization.

133032112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44344037410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 133032112221 its reverse (122211230331), we get a palindrome (255243342552).

The spelling of 133032112221 in words is "one hundred thirty-three billion, thirty-two million, one hundred twelve thousand, two hundred twenty-one".