33422100221161 has 2 divisors, whose sum is σ = 33422100221162. Its totient is φ = 33422100221160.

The previous prime is 33422100221021. The next prime is 33422100221173. The reversal of 33422100221161 is 16112200122433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18856924111936 + 14565176109225 = 4342456^2 + 3816435^2 .

It is a cyclic number.

It is not a de Polignac number, because 33422100221161 - 2²³ = 33422091832553 is a prime.

It is a super-2 number, since 2×33422100221161² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33422100228161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16711050110580 + 16711050110581.

It is an arithmetic number, because the mean of its divisors is an integer number (16711050110581).

Almost surely, 2^{33422100221161} is an apocalyptic number.

It is an amenable number.

33422100221161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33422100221161 is an equidigital number, since it uses as much as digits as its factorization.

33422100221161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 33422100221161 its reverse (16112200122433), we get a palindrome (49534300343594).

The spelling of 33422100221161 in words is "thirty-three trillion, four hundred twenty-two billion, one hundred million, two hundred twenty-one thousand, one hundred sixty-one".