33020121401 has 2 divisors, whose sum is σ = 33020121402. Its totient is φ = 33020121400.

The previous prime is 33020121391. The next prime is 33020121403. The reversal of 33020121401 is 10412102033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29138831401 + 3881290000 = 170701^2 + 62300^2 .

It is a cyclic number.

It is not a de Polignac number, because 33020121401 - 2¹⁰ = 33020120377 is a prime.

Together with 33020121403, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33020121401.

It is not a weakly prime, because it can be changed into another prime (33020121403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16510060700 + 16510060701.

It is an arithmetic number, because the mean of its divisors is an integer number (16510060701).

Almost surely, 2^33020121401 is an apocalyptic number.

It is an amenable number.

33020121401 is a deficient number, since it is larger than the sum of its proper divisors (1).

33020121401 is an equidigital number, since it uses as much as digits as its factorization.

33020121401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33020121401 its reverse (10412102033), we get a palindrome (43432223434).

The spelling of 33020121401 in words is "thirty-three billion, twenty million, one hundred twenty-one thousand, four hundred one".