10111101101021 has 8 divisors (see below), whose sum is σ = 10209730702080. Its totient is φ = 10012480414992.

The previous prime is 10111101101011. The next prime is 10111101101041. The reversal of 10111101101021 is 12010110111101.

It is a happy number.

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-10111101101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111101100993 and 10111101101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111101101011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62060 + ... + 4497338.

It is an arithmetic number, because the mean of its divisors is an integer number (1276216337760).

Almost surely, 2^{10111101101021} is an apocalyptic number.

It is an amenable number.

10111101101021 is a deficient number, since it is larger than the sum of its proper divisors (98629601059).

10111101101021 is a wasteful number, since it uses less digits than its factorization.

10111101101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457515.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10111101101021 its reverse (12010110111101), we get a palindrome (22121211212122).

The spelling of 10111101101021 in words is "ten trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, twenty-one".