211124221001321 has 4 divisors (see below), whose sum is σ = 211124250726912. Its totient is φ = 211124191275732.

The previous prime is 211124221001263. The next prime is 211124221001377. The reversal of 211124221001321 is 123100122421112.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211124221001321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211124221004321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2740820 + ... + 20730666.

It is an arithmetic number, because the mean of its divisors is an integer number (52781062681728).

Almost surely, 2^{211124221001321} is an apocalyptic number.

It is an amenable number.

211124221001321 is a deficient number, since it is larger than the sum of its proper divisors (29725591).

211124221001321 is a wasteful number, since it uses less digits than its factorization.

211124221001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29725590.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 211124221001321 its reverse (123100122421112), we get a palindrome (334224343422433).

The spelling of 211124221001321 in words is "two hundred eleven trillion, one hundred twenty-four billion, two hundred twenty-one million, one thousand, three hundred twenty-one".