1057222 has 4 divisors (see below), whose sum is σ = 1585836. Its totient is φ = 528610.

The previous prime is 1057219. The next prime is 1057223. The reversal of 1057222 is 2227501.

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

It is a super-2 number, since 2×1057222² = 2235436714568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264304 + ... + 264307.

It is an arithmetic number, because the mean of its divisors is an integer number (396459).

2^1057222 is an apocalyptic number.

1057222 is a deficient number, since it is larger than the sum of its proper divisors (528614).

1057222 is an equidigital number, since it uses as much as digits as its factorization.

1057222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528613.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1057222 is about 1028.2130129501. The cubic root of 1057222 is about 101.8721324798.

The spelling of 1057222 in words is "one million, fifty-seven thousand, two hundred twenty-two".