21110212010011 has 8 divisors (see below), whose sum is σ = 21275722540800. Its totient is φ = 20944896315240.

The previous prime is 21110212009979. The next prime is 21110212010021. The reversal of 21110212010011 is 11001021201112.

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 21110212010011 - 2⁵ = 21110212009979 is a prime.

It is a super-2 number, since 2×21110212010011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21110212009973 and 21110212010000.

It is not an unprimeable number, because it can be changed into a prime (21110212010021) 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, 48491455 + ... + 48924856.

It is an arithmetic number, because the mean of its divisors is an integer number (2659465317600).

Almost surely, 2^{21110212010011} is an apocalyptic number.

21110212010011 is a deficient number, since it is larger than the sum of its proper divisors (165510530789).

21110212010011 is a wasteful number, since it uses less digits than its factorization.

21110212010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97418009.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21110212010011 its reverse (11001021201112), we get a palindrome (32111233211123).

The spelling of 21110212010011 in words is "twenty-one trillion, one hundred ten billion, two hundred twelve million, ten thousand, eleven".