2221000033169 has 2 divisors, whose sum is σ = 2221000033170. Its totient is φ = 2221000033168.

The previous prime is 2221000033163. The next prime is 2221000033289. The reversal of 2221000033169 is 9613300001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2218908160000 + 2091873169 = 1489600^2 + 45737^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221000033169 - 2¹⁶ = 2220999967633 is a prime.

It is a super-2 number, since 2×2221000033169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221000033163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500016584 + 1110500016585.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500016585).

Almost surely, 2^{2221000033169} is an apocalyptic number.

It is an amenable number.

2221000033169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221000033169 is an equidigital number, since it uses as much as digits as its factorization.

2221000033169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 2221000033169 in words is "two trillion, two hundred twenty-one billion, thirty-three thousand, one hundred sixty-nine".