10011110021 has 16 divisors (see below), whose sum is σ = 10973256000. Its totient is φ = 9057744000.

The previous prime is 10011110003. The next prime is 10011110033. The reversal of 10011110021 is 12001111001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10011110021 - 2¹⁸ = 10010847877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011109990 and 10011110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011115021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2305070 + ... + 2309408.

It is an arithmetic number, because the mean of its divisors is an integer number (685828500).

Almost surely, 2^10011110021 is an apocalyptic number.

10011110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10011110021 is a deficient number, since it is larger than the sum of its proper divisors (962145979).

10011110021 is a wasteful number, since it uses less digits than its factorization.

10011110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300.

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

Adding to 10011110021 its reverse (12001111001), we get a palindrome (22012221022).

The spelling of 10011110021 in words is "ten billion, eleven million, one hundred ten thousand, twenty-one".