3021035135221 has 2 divisors, whose sum is σ = 3021035135222. Its totient is φ = 3021035135220.

The previous prime is 3021035135201. The next prime is 3021035135249. The reversal of 3021035135221 is 1225315301203.

It is an a-pointer prime, because the next prime (3021035135249) can be obtained adding 3021035135221 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1528029738225 + 1493005396996 = 1236135^2 + 1221886^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021035135221 - 2²⁷ = 3020900917493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3021035135221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3021035135201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510517567610 + 1510517567611.

It is an arithmetic number, because the mean of its divisors is an integer number (1510517567611).

Almost surely, 2^{3021035135221} is an apocalyptic number.

It is an amenable number.

3021035135221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021035135221 is an equidigital number, since it uses as much as digits as its factorization.

3021035135221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 3021035135221 in words is "three trillion, twenty-one billion, thirty-five million, one hundred thirty-five thousand, two hundred twenty-one".