21210000112101 has 8 divisors (see below), whose sum is σ = 29044324477984. Its totient is φ = 13757837910480.

The previous prime is 21210000112099. The next prime is 21210000112127. The reversal of 21210000112101 is 10121100001212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21210000112101 - 2¹ = 21210000112099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210000112501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95540540935 + ... + 95540541156.

It is an arithmetic number, because the mean of its divisors is an integer number (3630540559748).

Almost surely, 2^{21210000112101} is an apocalyptic number.

It is an amenable number.

21210000112101 is a deficient number, since it is larger than the sum of its proper divisors (7834324365883).

21210000112101 is a wasteful number, since it uses less digits than its factorization.

21210000112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191081082131.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21210000112101 its reverse (10121100001212), we get a palindrome (31331100113313).

The spelling of 21210000112101 in words is "twenty-one trillion, two hundred ten billion, one hundred twelve thousand, one hundred one".