1001110021001 has 8 divisors (see below), whose sum is σ = 1010851892544. Its totient is φ = 991368579600.

The previous prime is 1001110020961. The next prime is 1001110021007. The reversal of 1001110021001 is 1001200111001.

It is a happy number.

1001110021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001110021001 is a prime.

It is a super-2 number, since 2×1001110021001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001110021001.

It is not an unprimeable number, because it can be changed into a prime (1001110021007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6585551 + ... + 6735851.

It is an arithmetic number, because the mean of its divisors is an integer number (126356486568).

Almost surely, 2^{1001110021001} is an apocalyptic number.

It is an amenable number.

1001110021001 is a deficient number, since it is larger than the sum of its proper divisors (9741871543).

1001110021001 is a wasteful number, since it uses less digits than its factorization.

1001110021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215071.

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

Adding to 1001110021001 its reverse (1001200111001), we get a palindrome (2002310132002).

The spelling of 1001110021001 in words is "one trillion, one billion, one hundred ten million, twenty-one thousand, one".