33102420121 has 2 divisors, whose sum is σ = 33102420122. Its totient is φ = 33102420120.

The previous prime is 33102420107. The next prime is 33102420139. The reversal of 33102420121 is 12102420133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22563344521 + 10539075600 = 150211^2 + 102660^2 .

It is a cyclic number.

It is not a de Polignac number, because 33102420121 - 2⁷ = 33102419993 is a prime.

It is not a weakly prime, because it can be changed into another prime (33102420101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16551210060 + 16551210061.

It is an arithmetic number, because the mean of its divisors is an integer number (16551210061).

Almost surely, 2^33102420121 is an apocalyptic number.

It is an amenable number.

33102420121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33102420121 is an equidigital number, since it uses as much as digits as its factorization.

33102420121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 33102420121 its reverse (12102420133), we get a palindrome (45204840254).

The spelling of 33102420121 in words is "thirty-three billion, one hundred two million, four hundred twenty thousand, one hundred twenty-one".