222141169 has 4 divisors (see below), whose sum is σ = 223425396. Its totient is φ = 220856944.

The previous prime is 222141151. The next prime is 222141181. The reversal of 222141169 is 961141222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 961141222 = 2 ⋅480570611.

It can be written as a sum of positive squares in 2 ways, for example, as 207792225 + 14348944 = 14415^2 + 3788^2 .

It is a cyclic number.

It is not a de Polignac number, because 222141169 - 2⁵ = 222141137 is a prime.

It is a super-2 number, since 2×222141169² = 98693397929373122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222142169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641854 + ... + 642199.

It is an arithmetic number, because the mean of its divisors is an integer number (55856349).

Almost surely, 2^222141169 is an apocalyptic number.

It is an amenable number.

222141169 is a deficient number, since it is larger than the sum of its proper divisors (1284227).

222141169 is a wasteful number, since it uses less digits than its factorization.

222141169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284226.

The product of its digits is 1728, while the sum is 28.

The square root of 222141169 is about 14904.4009943372. The cubic root of 222141169 is about 605.6332135826.

The spelling of 222141169 in words is "two hundred twenty-two million, one hundred forty-one thousand, one hundred sixty-nine".