1225022 has 4 divisors (see below), whose sum is σ = 1837536. Its totient is φ = 612510.

The previous prime is 1225019. The next prime is 1225061. The reversal of 1225022 is 2205221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2205221 = 1483 ⋅1487.

It is a d-powerful number, because it can be written as 1 + 2⁴ + 2¹⁵ + 5⁷ + 0 + 2¹⁶ + 2²⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 1224988 and 1225006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306254 + ... + 306257.

It is an arithmetic number, because the mean of its divisors is an integer number (459384).

2^1225022 is an apocalyptic number.

1225022 is a deficient number, since it is larger than the sum of its proper divisors (612514).

1225022 is an equidigital number, since it uses as much as digits as its factorization.

1225022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612513.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1225022 is about 1106.8071196012. The cubic root of 1225022 is about 106.9993885894. Note that the first 3 decimals are identical.

The spelling of 1225022 in words is "one million, two hundred twenty-five thousand, twenty-two".