1001200200111 has 32 divisors (see below), whose sum is σ = 1495424099520. Its totient is φ = 662015066112.

The previous prime is 1001200200097. The next prime is 1001200200167. The reversal of 1001200200111 is 1110020021001.

It is a happy number.

It is not a de Polignac number, because 1001200200111 - 2⁶ = 1001200200047 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1001200200093 and 1001200200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200200211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1307161 + ... + 1926413.

It is an arithmetic number, because the mean of its divisors is an integer number (46732003110).

Almost surely, 2^{1001200200111} is an apocalyptic number.

1001200200111 is a deficient number, since it is larger than the sum of its proper divisors (494223899409).

1001200200111 is a wasteful number, since it uses less digits than its factorization.

1001200200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619752 (or 619746 counting only the distinct ones).

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

Adding to 1001200200111 its reverse (1110020021001), we get a palindrome (2111220221112).

The spelling of 1001200200111 in words is "one trillion, one billion, two hundred million, two hundred thousand, one hundred eleven".