3020000121221 has 2 divisors, whose sum is σ = 3020000121222. Its totient is φ = 3020000121220.

The previous prime is 3020000121191. The next prime is 3020000121241. The reversal of 3020000121221 is 1221210000203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2860191264100 + 159808857121 = 1691210^2 + 399761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020000121221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3020000121196 and 3020000121205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020000121241) 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, 1510000060610 + 1510000060611.

It is an arithmetic number, because the mean of its divisors is an integer number (1510000060611).

Almost surely, 2^{3020000121221} is an apocalyptic number.

It is an amenable number.

3020000121221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020000121221 is an equidigital number, since it uses as much as digits as its factorization.

3020000121221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 3020000121221 its reverse (1221210000203), we get a palindrome (4241210121424).

The spelling of 3020000121221 in words is "three trillion, twenty billion, one hundred twenty-one thousand, two hundred twenty-one".