2011222212169 has 2 divisors, whose sum is σ = 2011222212170. Its totient is φ = 2011222212168.

The previous prime is 2011222212113. The next prime is 2011222212229. The reversal of 2011222212169 is 9612122221102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1451029840569 + 560192371600 = 1204587^2 + 748460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011222212169 - 2¹⁵ = 2011222179401 is a prime.

It is a super-2 number, since 2×2011222212169² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011222212169.

It is not a weakly prime, because it can be changed into another prime (2011222215169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005611106084 + 1005611106085.

It is an arithmetic number, because the mean of its divisors is an integer number (1005611106085).

Almost surely, 2^{2011222212169} is an apocalyptic number.

It is an amenable number.

2011222212169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011222212169 is an equidigital number, since it uses as much as digits as its factorization.

2011222212169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 2011222212169 in words is "two trillion, eleven billion, two hundred twenty-two million, two hundred twelve thousand, one hundred sixty-nine".