1002001222000 has 80 divisors (see below), whose sum is σ = 2479184259552. Its totient is φ = 391479513600.

The previous prime is 1002001221919. The next prime is 1002001222007. The reversal of 1002001222000 is 2221002001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002001222007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5739589 + ... + 5911588.

Almost surely, 2^{1002001222000} is an apocalyptic number.

1002001222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002001222000 is an abundant number, since it is smaller than the sum of its proper divisors (1477183037552).

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

1002001222000 is a wasteful number, since it uses less digits than its factorization.

1002001222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651243 (or 11651227 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1002001222000 its reverse (2221002001), we get a palindrome (1004222224001).

The spelling of 1002001222000 in words is "one trillion, two billion, one million, two hundred twenty-two thousand".