1002211220000 has 120 divisors (see below), whose sum is σ = 2488638143376. Its totient is φ = 397137056000.

The previous prime is 1002211219981. The next prime is 1002211220011. The reversal of 1002211220000 is 221122001.

It is a happy 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 19 ways as a sum of consecutive naturals, for example, 1905839 + ... + 2374161.

Almost surely, 2^{1002211220000} is an apocalyptic number.

1002211220000 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 1002211220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244319071688).

1002211220000 is an abundant number, since it is smaller than the sum of its proper divisors (1486426923376).

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

1002211220000 is an equidigital number, since it uses as much as digits as its factorization.

1002211220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468460 (or 468437 counting only the distinct ones).

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

Adding to 1002211220000 its reverse (221122001), we get a palindrome (1002432342001).

The spelling of 1002211220000 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty thousand".