222122446 has 48 divisors (see below), whose sum is σ = 415044000. Its totient is φ = 87295104.

The previous prime is 222122437. The next prime is 222122449. The reversal of 222122446 is 644221222.

It is a self number, because there is not a number n which added to its sum of digits gives 222122446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636280 + ... + 636628.

It is an arithmetic number, because the mean of its divisors is an integer number (8646750).

Almost surely, 2^222122446 is an apocalyptic number.

222122446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222122446 is a deficient number, since it is larger than the sum of its proper divisors (192921554).

222122446 is a wasteful number, since it uses less digits than its factorization.

222122446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 640 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 222122446 is about 14903.7728780333. The cubic root of 222122446 is about 605.6161979925.

Adding to 222122446 its reverse (644221222), we get a palindrome (866343668).

The spelling of 222122446 in words is "two hundred twenty-two million, one hundred twenty-two thousand, four hundred forty-six".