211124240221 has 8 divisors (see below), whose sum is σ = 214283672640. Its totient is φ = 207965052768.

The previous prime is 211124240219. The next prime is 211124240237. The reversal of 211124240221 is 122042421112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211124240221 - 2¹ = 211124240219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211124240192 and 211124240201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211124240251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423400 + ... + 2509006.

It is an arithmetic number, because the mean of its divisors is an integer number (26785459080).

Almost surely, 2^211124240221 is an apocalyptic number.

It is an amenable number.

211124240221 is a deficient number, since it is larger than the sum of its proper divisors (3159432419).

211124240221 is an equidigital number, since it uses as much as digits as its factorization.

211124240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122483.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 211124240221 its reverse (122042421112), we get a palindrome (333166661333).

The spelling of 211124240221 in words is "two hundred eleven billion, one hundred twenty-four million, two hundred forty thousand, two hundred twenty-one".