11100011210021 has 4 divisors (see below), whose sum is σ = 11100938618700. Its totient is φ = 11099083801344.

The previous prime is 11100011209993. The next prime is 11100011210083. The reversal of 11100011210021 is 12001211000111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1434664950625 + 9665346259396 = 1197775^2 + 3108914^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100011210021 - 2¹⁸ = 11100010947877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100011209984 and 11100011210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100011215021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463686386 + ... + 463710323.

It is an arithmetic number, because the mean of its divisors is an integer number (2775234654675).

Almost surely, 2^{11100011210021} is an apocalyptic number.

It is an amenable number.

11100011210021 is a deficient number, since it is larger than the sum of its proper divisors (927408679).

11100011210021 is an equidigital number, since it uses as much as digits as its factorization.

11100011210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927408678.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11100011210021 its reverse (12001211000111), we get a palindrome (23101222210132).

The spelling of 11100011210021 in words is "eleven trillion, one hundred billion, eleven million, two hundred ten thousand, twenty-one".