133133211322 has 4 divisors (see below), whose sum is σ = 199699816986. Its totient is φ = 66566605660.

The previous prime is 133133211311. The next prime is 133133211329. The reversal of 133133211322 is 223112331331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223112331331 = 137 ⋅1628557163.

It can be written as a sum of positive squares in only one way, i.e., 91186484841 + 41946726481 = 301971^2 + 204809^2 .

It is not an unprimeable number, because it can be changed into a prime (133133211329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33283302829 + ... + 33283302832.

Almost surely, 2^133133211322 is an apocalyptic number.

133133211322 is a deficient number, since it is larger than the sum of its proper divisors (66566605664).

133133211322 is an equidigital number, since it uses as much as digits as its factorization.

133133211322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66566605663.

The product of its digits is 1944, while the sum is 25.

Adding to 133133211322 its reverse (223112331331), we get a palindrome (356245542653).

The spelling of 133133211322 in words is "one hundred thirty-three billion, one hundred thirty-three million, two hundred eleven thousand, three hundred twenty-two".