21112110100011 has 8 divisors (see below), whose sum is σ = 32170834438144. Its totient is φ = 12064062914280.

The previous prime is 21112110099991. The next prime is 21112110100033. The reversal of 21112110100011 is 11000101121112.

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

It is not a de Polignac number, because 21112110100011 - 2¹⁰ = 21112110098987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21112110100011.

It is not an unprimeable number, because it can be changed into a prime (21112110100091) 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, 502669288075 + ... + 502669288116.

It is an arithmetic number, because the mean of its divisors is an integer number (4021354304768).

Almost surely, 2^{21112110100011} is an apocalyptic number.

21112110100011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21112110100011 is a deficient number, since it is larger than the sum of its proper divisors (11058724338133).

21112110100011 is a wasteful number, since it uses less digits than its factorization.

21112110100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005338576201.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 21112110100011 its reverse (11000101121112), we get a palindrome (32112211221123).

The spelling of 21112110100011 in words is "twenty-one trillion, one hundred twelve billion, one hundred ten million, one hundred thousand, eleven".