1001211010200 has 72 divisors (see below), whose sum is σ = 3362400315300. Its totient is φ = 266989602240.

The previous prime is 1001211010187. The next prime is 1001211010207. The reversal of 1001211010200 is 20101121001.

It is a happy number.

1001211010200 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001211010207) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 278112370 + ... + 278115969.

Almost surely, 2^{1001211010200} is an apocalyptic number.

1001211010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001211010200 is an abundant number, since it is smaller than the sum of its proper divisors (2361189305100).

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

1001211010200 is a wasteful number, since it uses less digits than its factorization.

1001211010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556228361 (or 556228349 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1001211010200 its reverse (20101121001), we get a palindrome (1021312131201).

The spelling of 1001211010200 in words is "one trillion, one billion, two hundred eleven million, ten thousand, two hundred".