1102121002220 has 48 divisors (see below), whose sum is σ = 2646617295168. Its totient is φ = 377651930880.

The previous prime is 1102121002109. The next prime is 1102121002253. The reversal of 1102121002220 is 222001212011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1102121002195 and 1102121002204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2028671 + ... + 2513910.

It is an arithmetic number, because the mean of its divisors is an integer number (55137860316).

Almost surely, 2^{1102121002220} is an apocalyptic number.

1102121002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102121002220 is an abundant number, since it is smaller than the sum of its proper divisors (1544496292948).

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

1102121002220 is a wasteful number, since it uses less digits than its factorization.

1102121002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544330 (or 4544328 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1102121002220 its reverse (222001212011), we get a palindrome (1324122214231).

The spelling of 1102121002220 in words is "one trillion, one hundred two billion, one hundred twenty-one million, two thousand, two hundred twenty".