33130152512221 has 2 divisors, whose sum is σ = 33130152512222. Its totient is φ = 33130152512220.

The previous prime is 33130152512161. The next prime is 33130152512273. The reversal of 33130152512221 is 12221525103133.

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., 32457119323225 + 673033188996 = 5697115^2 + 820386^2 .

It is a cyclic number.

It is not a de Polignac number, because 33130152512221 - 2¹⁵ = 33130152479453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33130152572221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565076256110 + 16565076256111.

It is an arithmetic number, because the mean of its divisors is an integer number (16565076256111).

Almost surely, 2^{33130152512221} is an apocalyptic number.

It is an amenable number.

33130152512221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130152512221 is an equidigital number, since it uses as much as digits as its factorization.

33130152512221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 33130152512221 its reverse (12221525103133), we get a palindrome (45351677615354).

The spelling of 33130152512221 in words is "thirty-three trillion, one hundred thirty billion, one hundred fifty-two million, five hundred twelve thousand, two hundred twenty-one".