133301402221 has 4 divisors (see below), whose sum is σ = 143555356252. Its totient is φ = 123047448192.

The previous prime is 133301402207. The next prime is 133301402279. The reversal of 133301402221 is 122204103331.

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 71243617225 + 62057784996 = 266915^2 + 249114^2 .

It is a cyclic number.

It is not a de Polignac number, because 133301402221 - 2³⁵ = 98941663853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133301402192 and 133301402201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133301402921) 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, 5126976996 + ... + 5126977021.

It is an arithmetic number, because the mean of its divisors is an integer number (35888839063).

Almost surely, 2^133301402221 is an apocalyptic number.

It is an amenable number.

133301402221 is a deficient number, since it is larger than the sum of its proper divisors (10253954031).

133301402221 is a wasteful number, since it uses less digits than its factorization.

133301402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253954030.

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

Adding to 133301402221 its reverse (122204103331), we get a palindrome (255505505552).

The spelling of 133301402221 in words is "one hundred thirty-three billion, three hundred one million, four hundred two thousand, two hundred twenty-one".