1001200021196 has 6 divisors (see below), whose sum is σ = 1752100037100. Its totient is φ = 500600010596.

The previous prime is 1001200021193. The next prime is 1001200021229. The reversal of 1001200021196 is 6911200021001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1001200021193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125150002646 + ... + 125150002653.

It is an arithmetic number, because the mean of its divisors is an integer number (292016672850).

Almost surely, 2^{1001200021196} is an apocalyptic number.

It is an amenable number.

1001200021196 is a deficient number, since it is larger than the sum of its proper divisors (750900015904).

1001200021196 is a wasteful number, since it uses less digits than its factorization.

1001200021196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250300005303 (or 250300005301 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 1001200021196 its reverse (6911200021001), we get a palindrome (7912400042197).

The spelling of 1001200021196 in words is "one trillion, one billion, two hundred million, twenty-one thousand, one hundred ninety-six".