211120303312221 has 8 divisors (see below), whose sum is σ = 281495605282080. Its totient is φ = 140745935108592.

The previous prime is 211120303312213. The next prime is 211120303312277. The reversal of 211120303312221 is 122213303021112.

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

It is not a de Polignac number, because 211120303312221 - 2³ = 211120303312213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211120303312191 and 211120303312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120303312621) 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, 232913830 + ... + 233818503.

It is an arithmetic number, because the mean of its divisors is an integer number (35186950660260).

Almost surely, 2^{211120303312221} is an apocalyptic number.

It is an amenable number.

211120303312221 is a deficient number, since it is larger than the sum of its proper divisors (70375301969859).

211120303312221 is a wasteful number, since it uses less digits than its factorization.

211120303312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466883115.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211120303312221 its reverse (122213303021112), we get a palindrome (333333606333333).

The spelling of 211120303312221 in words is "two hundred eleven trillion, one hundred twenty billion, three hundred three million, three hundred twelve thousand, two hundred twenty-one".