21112102002011 has 8 divisors (see below), whose sum is σ = 21205975131504. Its totient is φ = 21018418708480.

The previous prime is 21112102002001. The next prime is 21112102002023. The reversal of 21112102002011 is 11020020121112.

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

It is not a de Polignac number, because 21112102002011 - 2¹⁴ = 21112101985627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112102002001) 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, 47236070 + ... + 47680923.

It is an arithmetic number, because the mean of its divisors is an integer number (2650746891438).

Almost surely, 2^{21112102002011} is an apocalyptic number.

21112102002011 is a deficient number, since it is larger than the sum of its proper divisors (93873129493).

21112102002011 is an equidigital number, since it uses as much as digits as its factorization.

21112102002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94917981.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21112102002011 its reverse (11020020121112), we get a palindrome (32132122123123).

The spelling of 21112102002011 in words is "twenty-one trillion, one hundred twelve billion, one hundred two million, two thousand, eleven".