133220021000071 has 2 divisors, whose sum is σ = 133220021000072. Its totient is φ = 133220021000070.

The previous prime is 133220021000069. The next prime is 133220021000123. The reversal of 133220021000071 is 170000120022331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133220021000071 - 2¹ = 133220021000069 is a prime.

Together with 133220021000069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133220021000771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66610010500035 + 66610010500036.

It is an arithmetic number, because the mean of its divisors is an integer number (66610010500036).

Almost surely, 2^{133220021000071} is an apocalyptic number.

133220021000071 is a deficient number, since it is larger than the sum of its proper divisors (1).

133220021000071 is an equidigital number, since it uses as much as digits as its factorization.

133220021000071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 133220021000071 in words is "one hundred thirty-three trillion, two hundred twenty billion, twenty-one million, seventy-one", and thus it is an aban number.