1102012220 has 12 divisors (see below), whose sum is σ = 2314225704. Its totient is φ = 440804880.

The previous prime is 1102012183. The next prime is 1102012283. The reversal of 1102012220 is 222102011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27550286 + ... + 27550325.

It is an arithmetic number, because the mean of its divisors is an integer number (192852142).

Almost surely, 2^1102012220 is an apocalyptic number.

1102012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102012220 is an abundant number, since it is smaller than the sum of its proper divisors (1212213484).

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

1102012220 is a wasteful number, since it uses less digits than its factorization.

1102012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55100620 (or 55100618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1102012220 is about 33196.5694010691. The cubic root of 1102012220 is about 1032.9091789091.

Adding to 1102012220 its reverse (222102011), we get a palindrome (1324114231).

The spelling of 1102012220 in words is "one billion, one hundred two million, twelve thousand, two hundred twenty".