100021101210011 has 4 divisors (see below), whose sum is σ = 100062898580232. Its totient is φ = 99979303839792.

The previous prime is 100021101209999. The next prime is 100021101210013. The reversal of 100021101210011 is 110012101120001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021101210011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021101209974 and 100021101210001.

It is not an unprimeable number, because it can be changed into a prime (100021101210013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20898681521 + ... + 20898686306.

It is an arithmetic number, because the mean of its divisors is an integer number (25015724645058).

Almost surely, 2^{100021101210011} is an apocalyptic number.

100021101210011 is a deficient number, since it is larger than the sum of its proper divisors (41797370221).

100021101210011 is an equidigital number, since it uses as much as digits as its factorization.

100021101210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41797370220.

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

Adding to 100021101210011 its reverse (110012101120001), we get a palindrome (210033202330012).

The spelling of 100021101210011 in words is "one hundred trillion, twenty-one billion, one hundred one million, two hundred ten thousand, eleven".