1258222 has 24 divisors (see below), whose sum is σ = 2261304. Its totient is φ = 523152.

The previous prime is 1258219. The next prime is 1258241. The reversal of 1258222 is 2228521.

It is a d-powerful number, because it can be written as 1 + 2⁷ + 5⁷ + 8² + 2⁸ + 2¹⁷ + 2²⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 1258193 and 1258202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3453 + ... + 3799.

It is an arithmetic number, because the mean of its divisors is an integer number (94221).

2^1258222 is an apocalyptic number.

1258222 is a deficient number, since it is larger than the sum of its proper divisors (1003082).

1258222 is a wasteful number, since it uses less digits than its factorization.

1258222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 393 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 1258222 is about 1121.7049522936. The cubic root of 1258222 is about 107.9574020391.

Subtracting 1258222 from its reverse (2228521), we obtain a cube (970299 = 99³).

The spelling of 1258222 in words is "one million, two hundred fifty-eight thousand, two hundred twenty-two".