133221020312 has 16 divisors (see below), whose sum is σ = 262936224600. Its totient is φ = 63104693760.

The previous prime is 133221020297. The next prime is 133221020389. The reversal of 133221020312 is 213020122331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438226889 + ... + 438227192.

Almost surely, 2^133221020312 is an apocalyptic number.

It is an amenable number.

133221020312 is a deficient number, since it is larger than the sum of its proper divisors (129715204288).

133221020312 is a wasteful number, since it uses less digits than its factorization.

133221020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876454106 (or 876454102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 133221020312 its reverse (213020122331), we get a palindrome (346241142643).

The spelling of 133221020312 in words is "one hundred thirty-three billion, two hundred twenty-one million, twenty thousand, three hundred twelve".