33030001331221 has 2 divisors, whose sum is σ = 33030001331222. Its totient is φ = 33030001331220.

The previous prime is 33030001331137. The next prime is 33030001331227. The reversal of 33030001331221 is 12213310003033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33010609376196 + 19391955025 = 5745486^2 + 139255^2 .

It is a cyclic number.

It is not a de Polignac number, because 33030001331221 - 2⁹ = 33030001330709 is a prime.

It is a super-2 number, since 2×33030001331221² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33030001331192 and 33030001331201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33030001331227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16515000665610 + 16515000665611.

It is an arithmetic number, because the mean of its divisors is an integer number (16515000665611).

Almost surely, 2^{33030001331221} is an apocalyptic number.

It is an amenable number.

33030001331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33030001331221 is an equidigital number, since it uses as much as digits as its factorization.

33030001331221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33030001331221 its reverse (12213310003033), we get a palindrome (45243311334254).

The spelling of 33030001331221 in words is "thirty-three trillion, thirty billion, one million, three hundred thirty-one thousand, two hundred twenty-one".