1001222 has 8 divisors (see below), whose sum is σ = 1510272. Its totient is φ = 497800.

The previous prime is 1001219. The next prime is 1001237. The reversal of 1001222 is 2221001.

1001222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929 + ... + 1692.

It is an arithmetic number, because the mean of its divisors is an integer number (188784).

2^1001222 is an apocalyptic number.

1001222 is a deficient number, since it is larger than the sum of its proper divisors (509050).

1001222 is a wasteful number, since it uses less digits than its factorization.

1001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1001222 is about 1000.6108134535. The cubic root of 1001222 is about 100.0407167525.

Adding to 1001222 its reverse (2221001), we get a palindrome (3222223).

It can be divided in two parts, 1001 and 222, that multiplied together give a palindrome (222222).

The spelling of 1001222 in words is "one million, one thousand, two hundred twenty-two".