1001200001232 has 20 divisors (see below), whose sum is σ = 2586433336640. Its totient is φ = 333733333728.

The previous prime is 1001200001213. The next prime is 1001200001239. The reversal of 1001200001232 is 2321000021001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200001239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10429166632 + ... + 10429166727.

It is an arithmetic number, because the mean of its divisors is an integer number (129321666832).

Almost surely, 2^{1001200001232} is an apocalyptic number.

1001200001232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001200001232 is an abundant number, since it is smaller than the sum of its proper divisors (1585233335408).

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

1001200001232 is a wasteful number, since it uses less digits than its factorization.

1001200001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20858333370 (or 20858333364 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1001200001232 its reverse (2321000021001), we get a palindrome (3322200022233).

The spelling of 1001200001232 in words is "one trillion, one billion, two hundred million, one thousand, two hundred thirty-two".