622255222 has 4 divisors (see below), whose sum is σ = 933382836. Its totient is φ = 311127610.

The previous prime is 622255217. The next prime is 622255229. The reversal of 622255222 is 222552226.

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

It is a super-2 number, since 2×622255222² = 774403122612538568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622255229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155563804 + ... + 155563807.

It is an arithmetic number, because the mean of its divisors is an integer number (233345709).

Almost surely, 2^622255222 is an apocalyptic number.

622255222 is a deficient number, since it is larger than the sum of its proper divisors (311127614).

622255222 is a wasteful number, since it uses less digits than its factorization.

622255222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311127613.

The product of its digits is 9600, while the sum is 28.

The square root of 622255222 is about 24945.0440368423. The cubic root of 622255222 is about 853.7345354967.

The spelling of 622255222 in words is "six hundred twenty-two million, two hundred fifty-five thousand, two hundred twenty-two".