1298222 has 8 divisors (see below), whose sum is σ = 2061936. Its totient is φ = 610912.

The previous prime is 1298221. The next prime is 1298261. The reversal of 1298222 is 2228921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1298222² = 3370760722568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1298191 and 1298200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19058 + ... + 19125.

It is an arithmetic number, because the mean of its divisors is an integer number (257742).

2^1298222 is an apocalyptic number.

1298222 is a deficient number, since it is larger than the sum of its proper divisors (763714).

1298222 is a wasteful number, since it uses less digits than its factorization.

1298222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38202.

The product of its digits is 1152, while the sum is 26.

The square root of 1298222 is about 1139.3954537385. The cubic root of 1298222 is about 109.0895092834.

The spelling of 1298222 in words is "one million, two hundred ninety-eight thousand, two hundred twenty-two".