1222007 has 4 divisors (see below), whose sum is σ = 1227360. Its totient is φ = 1216656.

The previous prime is 1222003. The next prime is 1222019. The reversal of 1222007 is 7002221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222007 - 2² = 1222003 is a prime.

It is a super-2 number, since 2×1222007² = 2986602216098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221982 and 1222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (306840).

2^1222007 is an apocalyptic number.

1222007 is a deficient number, since it is larger than the sum of its proper divisors (5353).

1222007 is an equidigital number, since it uses as much as digits as its factorization.

1222007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1222007 is about 1105.4442545873. Note that the first 3 decimals coincide. The cubic root of 1222007 is about 106.9115348799.

Adding to 1222007 its reverse (7002221), we get a palindrome (8224228).

The spelling of 1222007 in words is "one million, two hundred twenty-two thousand, seven".