33221121211081 has 2 divisors, whose sum is σ = 33221121211082. Its totient is φ = 33221121211080.

The previous prime is 33221121210923. The next prime is 33221121211151. The reversal of 33221121211081 is 18011212112233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18338230323856 + 14882890887225 = 4282316^2 + 3857835^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221121211081 - 2³⁹ = 32671365397193 is a prime.

It is a super-3 number, since 3×33221121211081³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (33221121211981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610560605540 + 16610560605541.

It is an arithmetic number, because the mean of its divisors is an integer number (16610560605541).

Almost surely, 2^{33221121211081} is an apocalyptic number.

It is an amenable number.

33221121211081 is a deficient number, since it is larger than the sum of its proper divisors (1).

33221121211081 is an equidigital number, since it uses as much as digits as its factorization.

33221121211081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 33221121211081 in words is "thirty-three trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, eighty-one".