1102021112220 has 120 divisors (see below), whose sum is σ = 3599721911184. Its totient is φ = 251890507008.

The previous prime is 1102021112207. The next prime is 1102021112239. The reversal of 1102021112220 is 222111202011.

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 1102021112220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3680809 + ... + 3968928.

Almost surely, 2^{1102021112220} is an apocalyptic number.

1102021112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102021112220 is an abundant number, since it is smaller than the sum of its proper divisors (2497700798964).

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

1102021112220 is an equidigital number, since it uses as much as digits as its factorization.

1102021112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7649777 (or 7649754 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1102021112220 its reverse (222111202011), we get a palindrome (1324132314231).

The spelling of 1102021112220 in words is "one trillion, one hundred two billion, twenty-one million, one hundred twelve thousand, two hundred twenty".