133102403221 has 4 divisors (see below), whose sum is σ = 133105387212. Its totient is φ = 133099419232.

The previous prime is 133102403191. The next prime is 133102403233. The reversal of 133102403221 is 122304201331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94319008996 + 38783394225 = 307114^2 + 196935^2 .

It is a cyclic number.

It is not a de Polignac number, because 133102403221 - 2¹³ = 133102395029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133102403192 and 133102403201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133102403281) 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, 1424056 + ... + 1514641.

It is an arithmetic number, because the mean of its divisors is an integer number (33276346803).

Almost surely, 2^133102403221 is an apocalyptic number.

It is an amenable number.

133102403221 is a deficient number, since it is larger than the sum of its proper divisors (2983991).

133102403221 is an equidigital number, since it uses as much as digits as its factorization.

133102403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983990.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 133102403221 its reverse (122304201331), we get a palindrome (255406604552).

The spelling of 133102403221 in words is "one hundred thirty-three billion, one hundred two million, four hundred three thousand, two hundred twenty-one".