133203033221 has 16 divisors (see below), whose sum is σ = 146327610240. Its totient is φ = 120691169280.

The previous prime is 133203033199. The next prime is 133203033241. The reversal of 133203033221 is 122330302331.

It is a cyclic number.

It is not a de Polignac number, because 133203033221 - 2¹⁰ = 133203032197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133203033241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5512061 + ... + 5536173.

It is an arithmetic number, because the mean of its divisors is an integer number (9145475640).

Almost surely, 2^133203033221 is an apocalyptic number.

It is an amenable number.

133203033221 is a deficient number, since it is larger than the sum of its proper divisors (13124577019).

133203033221 is a wasteful number, since it uses less digits than its factorization.

133203033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36796.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 133203033221 its reverse (122330302331), we get a palindrome (255533335552).

The spelling of 133203033221 in words is "one hundred thirty-three billion, two hundred three million, thirty-three thousand, two hundred twenty-one".