21110000100101 has 8 divisors (see below), whose sum is σ = 23240367084000. Its totient is φ = 19014845793840.

The previous prime is 21110000100097. The next prime is 21110000100103. The reversal of 21110000100101 is 10100100001112.

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 21110000100101 - 2² = 21110000100097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110000100103) 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 7 ways as a sum of consecutive naturals, for example, 8803168151 + ... + 8803170548.

It is an arithmetic number, because the mean of its divisors is an integer number (2905045885500).

Almost surely, 2^{21110000100101} is an apocalyptic number.

It is an amenable number.

21110000100101 is a deficient number, since it is larger than the sum of its proper divisors (2130366983899).

21110000100101 is a wasteful number, since it uses less digits than its factorization.

21110000100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17606338819.

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

Adding to 21110000100101 its reverse (10100100001112), we get a palindrome (31210100101213).

The spelling of 21110000100101 in words is "twenty-one trillion, one hundred ten billion, one hundred thousand, one hundred one".