622222 has 4 divisors (see below), whose sum is σ = 933336. Its totient is φ = 311110.

The previous prime is 622189. The next prime is 622241. The reversal of 622222 is 222226.

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

622222 is a modest number, since divided by 2222 gives 62 as remainder.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 622196 and 622205.

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, 155554 + ... + 155557.

It is an arithmetic number, because the mean of its divisors is an integer number (233334).

2⁶²²²²² is an apocalyptic number.

622222 is a deficient number, since it is larger than the sum of its proper divisors (311114).

622222 is a wasteful number, since it uses less digits than its factorization.

622222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311113.

The product of its digits is 192, while the sum is 16.

The square root of 622222 is about 788.8104968876. The cubic root of 622222 is about 85.3719341692.

Adding to 622222 its reverse (222226), we get a palindrome (844448).

The spelling of 622222 in words is "six hundred twenty-two thousand, two hundred twenty-two".