1102315220 has 24 divisors (see below), whose sum is σ = 2332538208. Its totient is φ = 437559200.

The previous prime is 1102315219. The next prime is 1102315223. The reversal of 1102315220 is 225132011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102315223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207746 + ... + 212985.

It is an arithmetic number, because the mean of its divisors is an integer number (97189092).

Almost surely, 2^1102315220 is an apocalyptic number.

1102315220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102315220 is an abundant number, since it is smaller than the sum of its proper divisors (1230222988).

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

1102315220 is a wasteful number, since it uses less digits than its factorization.

1102315220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420871 (or 420869 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1102315220 is about 33201.1328119991. The cubic root of 1102315220 is about 1033.0038369041.

Adding to 1102315220 its reverse (225132011), we get a palindrome (1327447231).

The spelling of 1102315220 in words is "one billion, one hundred two million, three hundred fifteen thousand, two hundred twenty".