168430222 has 4 divisors (see below), whose sum is σ = 252645336. Its totient is φ = 84215110.

The previous prime is 168430201. The next prime is 168430243. The reversal of 168430222 is 222034861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222034861 = 53 ⋅4189337.

It is an interprime number because it is at equal distance from previous prime (168430201) and next prime (168430243).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42107554 + ... + 42107557.

It is an arithmetic number, because the mean of its divisors is an integer number (63161334).

Almost surely, 2^168430222 is an apocalyptic number.

168430222 is a deficient number, since it is larger than the sum of its proper divisors (84215114).

168430222 is an equidigital number, since it uses as much as digits as its factorization.

168430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84215113.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 168430222 is about 12978.0669592971. The cubic root of 168430222 is about 552.2554456404.

The spelling of 168430222 in words is "one hundred sixty-eight million, four hundred thirty thousand, two hundred twenty-two".