10002111211021 has 8 divisors (see below), whose sum is σ = 10004700420000. Its totient is φ = 9999522347760.

The previous prime is 10002111211007. The next prime is 10002111211061. The reversal of 10002111211021 is 12011211120001.

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 not a de Polignac number, because 10002111211021 - 2³³ = 9993521276429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002111210992 and 10002111211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002111211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63731355 + ... + 63888103.

It is an arithmetic number, because the mean of its divisors is an integer number (1250587552500).

Almost surely, 2^{10002111211021} is an apocalyptic number.

It is an amenable number.

10002111211021 is a deficient number, since it is larger than the sum of its proper divisors (2589208979).

10002111211021 is an equidigital number, since it uses as much as digits as its factorization.

10002111211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172859.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10002111211021 its reverse (12011211120001), we get a palindrome (22013322331022).

The spelling of 10002111211021 in words is "ten trillion, two billion, one hundred eleven million, two hundred eleven thousand, twenty-one".