1222047 has 24 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 789912.

The previous prime is 1222037. The next prime is 1222049. The reversal of 1222047 is 7402221.

It is not a de Polignac number, because 1222047 - 2⁸ = 1221791 is a prime.

1222047 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222049) 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, 11368 + ... + 11474.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^1222047 is an apocalyptic number.

1222047 is a deficient number, since it is larger than the sum of its proper divisors (664929).

1222047 is an equidigital number, since it uses as much as digits as its factorization.

1222047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1222047 is about 1105.4623467129. The cubic root of 1222047 is about 106.9127013803.

Adding to 1222047 its reverse (7402221), we get a palindrome (8624268).

The spelling of 1222047 in words is "one million, two hundred twenty-two thousand, forty-seven".