133113310221 has 32 divisors (see below), whose sum is σ = 190560123648. Its totient is φ = 82436175360.

The previous prime is 133113310217. The next prime is 133113310261. The reversal of 133113310221 is 122013311331.

It is a happy number.

It is not a de Polignac number, because 133113310221 - 2² = 133113310217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133113310201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1332985 + ... + 1429361.

It is an arithmetic number, because the mean of its divisors is an integer number (5955003864).

Almost surely, 2^133113310221 is an apocalyptic number.

It is an amenable number.

133113310221 is a deficient number, since it is larger than the sum of its proper divisors (57446813427).

133113310221 is a wasteful number, since it uses less digits than its factorization.

133113310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96981.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 133113310221 its reverse (122013311331), we get a palindrome (255126621552).

The spelling of 133113310221 in words is "one hundred thirty-three billion, one hundred thirteen million, three hundred ten thousand, two hundred twenty-one".