1220102 has 16 divisors (see below), whose sum is σ = 1989792. Its totient is φ = 557760.

The previous prime is 1220099. The next prime is 1220147. The reversal of 1220102 is 2010221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4202 + ... + 4482.

It is an arithmetic number, because the mean of its divisors is an integer number (124362).

2^1220102 is an apocalyptic number.

1220102 is a deficient number, since it is larger than the sum of its proper divisors (769690).

1220102 is a wasteful number, since it uses less digits than its factorization.

1220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

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

The square root of 1220102 is about 1104.5822739842. The cubic root of 1220102 is about 106.8559508016.

Adding to 1220102 its reverse (2010221), we get a palindrome (3230323).

The spelling of 1220102 in words is "one million, two hundred twenty thousand, one hundred two".