33122022181 has 2 divisors, whose sum is σ = 33122022182. Its totient is φ = 33122022180.

The previous prime is 33122022133. The next prime is 33122022187. The reversal of 33122022181 is 18122022133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33118540225 + 3481956 = 181985^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 33122022181 - 2¹³ = 33122013989 is a prime.

It is a super-2 number, since 2×33122022181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33122022187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16561011090 + 16561011091.

It is an arithmetic number, because the mean of its divisors is an integer number (16561011091).

Almost surely, 2^33122022181 is an apocalyptic number.

It is an amenable number.

33122022181 is a deficient number, since it is larger than the sum of its proper divisors (1).

33122022181 is an equidigital number, since it uses as much as digits as its factorization.

33122022181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 33122022181 in words is "thirty-three billion, one hundred twenty-two million, twenty-two thousand, one hundred eighty-one".