133300213221101 has 4 divisors (see below), whose sum is σ = 133300244444892. Its totient is φ = 133300181997312.

The previous prime is 133300213221013. The next prime is 133300213221239. The reversal of 133300213221101 is 101122312003331.

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 69530565573001 + 63769647648100 = 8338499^2 + 7985590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133300213221101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133300213221601) 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, 7956980 + ... + 18163533.

It is an arithmetic number, because the mean of its divisors is an integer number (33325061111223).

Almost surely, 2^{133300213221101} is an apocalyptic number.

It is an amenable number.

133300213221101 is a deficient number, since it is larger than the sum of its proper divisors (31223791).

133300213221101 is an equidigital number, since it uses as much as digits as its factorization.

133300213221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31223790.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 133300213221101 its reverse (101122312003331), we get a palindrome (234422525224432).

The spelling of 133300213221101 in words is "one hundred thirty-three trillion, three hundred billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred one".