21110011101101 has 8 divisors (see below), whose sum is σ = 22736130044544. Its totient is φ = 19484216719920.

The previous prime is 21110011100999. The next prime is 21110011101107. The reversal of 21110011101101 is 10110111001112.

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 21110011101101 - 2¹⁰ = 21110011100077 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 (21110011101107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81005465 + ... + 81265646.

It is an arithmetic number, because the mean of its divisors is an integer number (2842016255568).

Almost surely, 2^{21110011101101} is an apocalyptic number.

It is an amenable number.

21110011101101 is a deficient number, since it is larger than the sum of its proper divisors (1626118943443).

21110011101101 is a wasteful number, since it uses less digits than its factorization.

21110011101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162281131.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 21110011101101 its reverse (10110111001112), we get a palindrome (31220122102213).

The spelling of 21110011101101 in words is "twenty-one trillion, one hundred ten billion, eleven million, one hundred one thousand, one hundred one".