211210203301121 has 4 divisors (see below), whose sum is σ = 211213941392832. Its totient is φ = 211206465209412.

The previous prime is 211210203301079. The next prime is 211210203301187. The reversal of 211210203301121 is 121103302012112.

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 a cyclic number.

It is not a de Polignac number, because 211210203301121 - 2⁶ = 211210203301057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211210203301093 and 211210203301102.

It is not an unprimeable number, because it can be changed into a prime (211210203301921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868961101 + ... + 1869074106.

It is an arithmetic number, because the mean of its divisors is an integer number (52803485348208).

Almost surely, 2^{211210203301121} is an apocalyptic number.

It is an amenable number.

211210203301121 is a deficient number, since it is larger than the sum of its proper divisors (3738091711).

211210203301121 is an equidigital number, since it uses as much as digits as its factorization.

211210203301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738091710.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 211210203301121 its reverse (121103302012112), we get a palindrome (332313505313233).

The spelling of 211210203301121 in words is "two hundred eleven trillion, two hundred ten billion, two hundred three million, three hundred one thousand, one hundred twenty-one".