1102321205220 has 96 divisors (see below), whose sum is σ = 3115626877440. Its totient is φ = 291179681280.

The previous prime is 1102321205177. The next prime is 1102321205221. The reversal of 1102321205220 is 225021232011.

It is a super-3 number, since 3×1102321205220³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1102321205221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27794805 + ... + 27834435.

It is an arithmetic number, because the mean of its divisors is an integer number (32454446640).

Almost surely, 2^{1102321205220} is an apocalyptic number.

1102321205220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102321205220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557813438720).

1102321205220 is an abundant number, since it is smaller than the sum of its proper divisors (2013305672220).

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

1102321205220 is a wasteful number, since it uses less digits than its factorization.

1102321205220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44005 (or 44003 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1102321205220 its reverse (225021232011), we get a palindrome (1327342437231).

The spelling of 1102321205220 in words is "one trillion, one hundred two billion, three hundred twenty-one million, two hundred five thousand, two hundred twenty".