211102200121021 has 32 divisors (see below), whose sum is σ = 232482734265600. Its totient is φ = 190094143680000.

The previous prime is 211102200120997. The next prime is 211102200121039. The reversal of 211102200121021 is 120121002201112.

It is a cyclic number.

It is not a de Polignac number, because 211102200121021 - 2⁷ = 211102200120893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211102200120986 and 211102200121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102200121061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2280142951 + ... + 2280235531.

It is an arithmetic number, because the mean of its divisors is an integer number (7265085445800).

Almost surely, 2^{211102200121021} is an apocalyptic number.

It is an amenable number.

211102200121021 is a deficient number, since it is larger than the sum of its proper divisors (21380534144579).

211102200121021 is a wasteful number, since it uses less digits than its factorization.

211102200121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96661.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211102200121021 its reverse (120121002201112), we get a palindrome (331223202322133).

The spelling of 211102200121021 in words is "two hundred eleven trillion, one hundred two billion, two hundred million, one hundred twenty-one thousand, twenty-one".