211232200321021 has 4 divisors (see below), whose sum is σ = 230435127622944. Its totient is φ = 192029273019100.

The previous prime is 211232200320991. The next prime is 211232200321027. The reversal of 211232200321021 is 120123002232112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211232200321021 - 2⁷ = 211232200320893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211232200320983 and 211232200321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232200321027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9601463650945 + ... + 9601463650966.

It is an arithmetic number, because the mean of its divisors is an integer number (57608781905736).

Almost surely, 2^{211232200321021} is an apocalyptic number.

It is an amenable number.

211232200321021 is a deficient number, since it is larger than the sum of its proper divisors (19202927301923).

211232200321021 is a wasteful number, since it uses less digits than its factorization.

211232200321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19202927301922.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211232200321021 its reverse (120123002232112), we get a palindrome (331355202553133).

The spelling of 211232200321021 in words is "two hundred eleven trillion, two hundred thirty-two billion, two hundred million, three hundred twenty-one thousand, twenty-one".