1001200201101 has 24 divisors (see below), whose sum is σ = 1480967854080. Its totient is φ = 651434265216.

The previous prime is 1001200201087. The next prime is 1001200201117. The reversal of 1001200201101 is 1011020021001.

It is a happy number.

It is not a de Polignac number, because 1001200201101 - 2⁵ = 1001200201069 is a prime.

It is a super-2 number, since 2×1001200201101² (a number of 25 digits) contains 22 as substring.

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 (1001200201181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 516396 + ... + 1506341.

It is an arithmetic number, because the mean of its divisors is an integer number (61706993920).

Almost surely, 2^{1001200201101} is an apocalyptic number.

It is an amenable number.

1001200201101 is a deficient number, since it is larger than the sum of its proper divisors (479767652979).

1001200201101 is a wasteful number, since it uses less digits than its factorization.

1001200201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024065 (or 2024062 counting only the distinct ones).

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

Adding to 1001200201101 its reverse (1011020021001), we get a palindrome (2012220222102).

The spelling of 1001200201101 in words is "one trillion, one billion, two hundred million, two hundred one thousand, one hundred one".