10200111001001 has 4 divisors (see below), whose sum is σ = 10200126744912. Its totient is φ = 10200095257092.

The previous prime is 10200111000983. The next prime is 10200111001009. The reversal of 10200111001001 is 10010011100201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10200111001001 - 2¹⁴ = 10200110984617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10200111001001.

It is not an unprimeable number, because it can be changed into a prime (10200111001009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6856475 + ... + 8210448.

It is an arithmetic number, because the mean of its divisors is an integer number (2550031686228).

Almost surely, 2^{10200111001001} is an apocalyptic number.

It is an amenable number.

10200111001001 is a deficient number, since it is larger than the sum of its proper divisors (15743911).

10200111001001 is an equidigital number, since it uses as much as digits as its factorization.

10200111001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743910.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10200111001001 its reverse (10010011100201), we get a palindrome (20210122101202).

The spelling of 10200111001001 in words is "ten trillion, two hundred billion, one hundred eleven million, one thousand, one".