211120122211021 has 8 divisors (see below), whose sum is σ = 214698750524640. Its totient is φ = 207541504602768.

The previous prime is 211120122211003. The next prime is 211120122211111. The reversal of 211120122211021 is 120112221021112.

It is a happy number.

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 211120122211021 - 2²⁷ = 211119987993293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211120122211021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120122211001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43916770 + ... + 48486316.

It is an arithmetic number, because the mean of its divisors is an integer number (26837343815580).

Almost surely, 2^{211120122211021} is an apocalyptic number.

It is an amenable number.

211120122211021 is a deficient number, since it is larger than the sum of its proper divisors (3578628313619).

211120122211021 is an equidigital number, since it uses as much as digits as its factorization.

211120122211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352683.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211120122211021 its reverse (120112221021112), we get a palindrome (331232343232133).

The spelling of 211120122211021 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand, twenty-one".