1102331220 has 48 divisors (see below), whose sum is σ = 3138851520. Its totient is φ = 288971776.

The previous prime is 1102331213. The next prime is 1102331231. The reversal of 1102331220 is 221332011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1102331220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152157 + ... + 159236.

It is an arithmetic number, because the mean of its divisors is an integer number (65392740).

Almost surely, 2^1102331220 is an apocalyptic number.

1102331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102331220 is an abundant number, since it is smaller than the sum of its proper divisors (2036520300).

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

1102331220 is a wasteful number, since it uses less digits than its factorization.

1102331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311464 (or 311462 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1102331220 is about 33201.3737667585. The cubic root of 1102331220 is about 1033.0088348639.

Adding to 1102331220 its reverse (221332011), we get a palindrome (1323663231).

The spelling of 1102331220 in words is "one billion, one hundred two million, three hundred thirty-one thousand, two hundred twenty".