11210001021 has 8 divisors (see below), whose sum is σ = 16607408960. Its totient is φ = 7473333996.

The previous prime is 11210000993. The next prime is 11210001031. The reversal of 11210001021 is 12010001211.

It is a happy number.

11210001021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11210001021 - 2⁹ = 11210000509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11210000994 and 11210001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210001031) 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, 207592585 + ... + 207592638.

It is an arithmetic number, because the mean of its divisors is an integer number (2075926120).

Almost surely, 2^11210001021 is an apocalyptic number.

It is an amenable number.

11210001021 is a deficient number, since it is larger than the sum of its proper divisors (5397407939).

11210001021 is an equidigital number, since it uses as much as digits as its factorization.

11210001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415185232 (or 415185226 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11210001021 its reverse (12010001211), we get a palindrome (23220002232).

The spelling of 11210001021 in words is "eleven billion, two hundred ten million, one thousand, twenty-one".