1001200022200 has 48 divisors (see below), whose sum is σ = 2660331491280. Its totient is φ = 343268578560.

The previous prime is 1001200022197. The next prime is 1001200022261. The reversal of 1001200022200 is 22200021001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357570037 + ... + 357572836.

It is an arithmetic number, because the mean of its divisors is an integer number (55423572735).

Almost surely, 2^{1001200022200} is an apocalyptic number.

1001200022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001200022200 is an abundant number, since it is smaller than the sum of its proper divisors (1659131469080).

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

1001200022200 is a wasteful number, since it uses less digits than its factorization.

1001200022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715142896 (or 715142887 counting only the distinct ones).

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

Adding to 1001200022200 its reverse (22200021001), we get a palindrome (1023400043201).

The spelling of 1001200022200 in words is "one trillion, one billion, two hundred million, twenty-two thousand, two hundred".