21220032022169 has 2 divisors, whose sum is σ = 21220032022170. Its totient is φ = 21220032022168.

The previous prime is 21220032022121. The next prime is 21220032022237. The reversal of 21220032022169 is 96122023002212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17377334343769 + 3842697678400 = 4168613^2 + 1960280^2 .

It is a cyclic number.

It is not a de Polignac number, because 21220032022169 - 2³² = 21215737054873 is a prime.

It is a super-2 number, since 2×21220032022169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21220032025169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610016011084 + 10610016011085.

It is an arithmetic number, because the mean of its divisors is an integer number (10610016011085).

Almost surely, 2^{21220032022169} is an apocalyptic number.

It is an amenable number.

21220032022169 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220032022169 is an equidigital number, since it uses as much as digits as its factorization.

21220032022169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 21220032022169 in words is "twenty-one trillion, two hundred twenty billion, thirty-two million, twenty-two thousand, one hundred sixty-nine".