1220002 has 24 divisors (see below), whose sum is σ = 2175120. Its totient is φ = 511560.

The previous prime is 1219991. The next prime is 1220027. The reversal of 1220002 is 2000221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (7).

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, 5677 + ... + 5887.

It is an arithmetic number, because the mean of its divisors is an integer number (90630).

2^1220002 is an apocalyptic number.

1220002 is a deficient number, since it is larger than the sum of its proper divisors (955118).

1220002 is a wasteful number, since it uses less digits than its factorization.

1220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1220002 is about 1104.5370070758. The cubic root of 1220002 is about 106.8530314045.

Adding to 1220002 its reverse (2000221), we get a palindrome (3220223).

The spelling of 1220002 in words is "one million, two hundred twenty thousand, two".