202222117 has 4 divisors (see below), whose sum is σ = 202801900. Its totient is φ = 201642336.

The previous prime is 202222109. The next prime is 202222121. The reversal of 202222117 is 711222202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711222202 = 2 ⋅355611101.

It can be written as a sum of positive squares in 2 ways, for example, as 109118916 + 93103201 = 10446^2 + 9649^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222117 - 2³ = 202222109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222094 and 202222103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289368 + ... + 290065.

It is an arithmetic number, because the mean of its divisors is an integer number (50700475).

Almost surely, 2^202222117 is an apocalyptic number.

It is an amenable number.

202222117 is a deficient number, since it is larger than the sum of its proper divisors (579783).

202222117 is an equidigital number, since it uses as much as digits as its factorization.

202222117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579782.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 202222117 is about 14220.4823054635. The cubic root of 202222117 is about 586.9614120615.

Adding to 202222117 its reverse (711222202), we get a palindrome (913444319).

The spelling of 202222117 in words is "two hundred two million, two hundred twenty-two thousand, one hundred seventeen".