1001121002200 has 96 divisors (see below), whose sum is σ = 2542094014320. Its totient is φ = 363630080000.

The previous prime is 1001121002183. The next prime is 1001121002263. The reversal of 1001121002200 is 22001211001.

It is a super-3 number, since 3×1001121002200³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 23 ways as a sum of consecutive naturals, for example, 1679940 + ... + 2196460.

Almost surely, 2^{1001121002200} is an apocalyptic number.

1001121002200 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 1001121002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271047007160).

1001121002200 is an abundant number, since it is smaller than the sum of its proper divisors (1540973012120).

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

1001121002200 is a wasteful number, since it uses less digits than its factorization.

1001121002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517429 (or 517420 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001121002200 its reverse (22001211001), we get a palindrome (1023122213201).

The spelling of 1001121002200 in words is "one trillion, one billion, one hundred twenty-one million, two thousand, two hundred".