1102220 has 24 divisors (see below), whose sum is σ = 2645664. Its totient is φ = 377856.

The previous prime is 1102201. The next prime is 1102237. The reversal of 1102220 is 222011.

It is a junction number, because it is equal to n+sod(n) for n = 1102198 and 1102207.

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, 3797 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (110236).

2^1102220 is an apocalyptic number.

1102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102220 is an abundant number, since it is smaller than the sum of its proper divisors (1543444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1102220 is a wasteful number, since it uses less digits than its factorization.

1102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889 (or 7887 counting only the distinct ones).

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

The square root of 1102220 is about 1049.8666582000. The cubic root of 1102220 is about 103.2974091795.

Adding to 1102220 its reverse (222011), we get a palindrome (1324231).

The spelling of 1102220 in words is "one million, one hundred two thousand, two hundred twenty".