1102001221200 has 240 divisors, whose sum is σ = 3916267200000. Its totient is φ = 262623628800.

The previous prime is 1102001221183. The next prime is 1102001221241. The reversal of 1102001221200 is 21221002011.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71301 + ... + 1486299.

It is an arithmetic number, because the mean of its divisors is an integer number (16317780000).

Almost surely, 2^{1102001221200} is an apocalyptic number.

1102001221200 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 1102001221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958133600000).

1102001221200 is an abundant number, since it is smaller than the sum of its proper divisors (2814265978800).

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

1102001221200 is a wasteful number, since it uses less digits than its factorization.

1102001221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415090 (or 1415079 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1102001221200 its reverse (21221002011), we get a palindrome (1123222223211).

The spelling of 1102001221200 in words is "one trillion, one hundred two billion, one million, two hundred twenty-one thousand, two hundred".