211102212021021 has 32 divisors (see below), whose sum is σ = 313118724240000. Its totient is φ = 140566263615360.

The previous prime is 211102212021007. The next prime is 211102212021037. The reversal of 211102212021021 is 120120212201112.

211102212021021 is a `hidden beast` number, since 211 + 1 + 0 + 221 + 2 + 0 + 210 + 21 = 666.

It is not a de Polignac number, because 211102212021021 - 2⁷ = 211102212020893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211102212020985 and 211102212021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102212021061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102618411 + ... + 104655351.

It is an arithmetic number, because the mean of its divisors is an integer number (9784960132500).

Almost surely, 2^{211102212021021} is an apocalyptic number.

It is an amenable number.

211102212021021 is a deficient number, since it is larger than the sum of its proper divisors (102016512218979).

211102212021021 is a wasteful number, since it uses less digits than its factorization.

211102212021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041546 (or 2041540 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211102212021021 its reverse (120120212201112), we get a palindrome (331222424222133).

The spelling of 211102212021021 in words is "two hundred eleven trillion, one hundred two billion, two hundred twelve million, twenty-one thousand, twenty-one".