162221222 has 4 divisors (see below), whose sum is σ = 243331836. Its totient is φ = 81110610.

The previous prime is 162221219. The next prime is 162221243. The reversal of 162221222 is 222122261.

162221222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 162221194 and 162221203.

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, 40555304 + ... + 40555307.

It is an arithmetic number, because the mean of its divisors is an integer number (60832959).

Almost surely, 2^162221222 is an apocalyptic number.

162221222 is a deficient number, since it is larger than the sum of its proper divisors (81110614).

162221222 is an equidigital number, since it uses as much as digits as its factorization.

162221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81110613.

The product of its digits is 384, while the sum is 20.

The square root of 162221222 is about 12736.6095174501. The cubic root of 162221222 is about 545.3842051399.

Adding to 162221222 its reverse (222122261), we get a palindrome (384343483).

The spelling of 162221222 in words is "one hundred sixty-two million, two hundred twenty-one thousand, two hundred twenty-two".