228117022 has 8 divisors (see below), whose sum is σ = 391057776. Its totient is φ = 97764432.

The previous prime is 228117017. The next prime is 228117031. The reversal of 228117022 is 220711822.

228117022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×228117022² = 104074751452296968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8147023 + ... + 8147050.

It is an arithmetic number, because the mean of its divisors is an integer number (48882222).

Almost surely, 2^228117022 is an apocalyptic number.

228117022 is a deficient number, since it is larger than the sum of its proper divisors (162940754).

228117022 is a wasteful number, since it uses less digits than its factorization.

228117022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16294082.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 228117022 is about 15103.5433590929. The cubic root of 228117022 is about 611.0159742172.

Adding to 228117022 its reverse (220711822), we get a palindrome (448828844).

The spelling of 228117022 in words is "two hundred twenty-eight million, one hundred seventeen thousand, twenty-two".