20121001169333 has 2 divisors, whose sum is σ = 20121001169334. Its totient is φ = 20121001169332.

The previous prime is 20121001169287. The next prime is 20121001169359. The reversal of 20121001169333 is 33396110012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19315031742769 + 805969426564 = 4394887^2 + 897758^2 .

It is a cyclic number.

It is not a de Polignac number, because 20121001169333 - 2³² = 20116706202037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20121001169333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121001169233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060500584666 + 10060500584667.

It is an arithmetic number, because the mean of its divisors is an integer number (10060500584667).

Almost surely, 2^{20121001169333} is an apocalyptic number.

It is an amenable number.

20121001169333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121001169333 is an equidigital number, since it uses as much as digits as its factorization.

20121001169333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 20121001169333 in words is "twenty trillion, one hundred twenty-one billion, one million, one hundred sixty-nine thousand, three hundred thirty-three".