21110222002101 has 8 divisors (see below), whose sum is σ = 28174584815520. Its totient is φ = 14059670261712.

The previous prime is 21110222002087. The next prime is 21110222002139. The reversal of 21110222002101 is 10120022201112.

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

It is not a de Polignac number, because 21110222002101 - 2¹⁴ = 21110221985717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110222002151) 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, 3452764690 + ... + 3452770803.

It is an arithmetic number, because the mean of its divisors is an integer number (3521823101940).

Almost surely, 2^{21110222002101} is an apocalyptic number.

It is an amenable number.

21110222002101 is a deficient number, since it is larger than the sum of its proper divisors (7064362813419).

21110222002101 is a wasteful number, since it uses less digits than its factorization.

21110222002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905536515.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110222002101 its reverse (10120022201112), we get a palindrome (31230244203213).

The spelling of 21110222002101 in words is "twenty-one trillion, one hundred ten billion, two hundred twenty-two million, two thousand, one hundred one".