211120122221093 has 4 divisors (see below), whose sum is σ = 211120901714220. Its totient is φ = 211119342727968.

The previous prime is 211120122221009. The next prime is 211120122221119. The reversal of 211120122221093 is 390122221021112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64612289483329 + 146507832737764 = 8038177^2 + 12104042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211120122221093 is a prime.

It is a super-2 number, since 2×211120122221093² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120122224093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389340158 + ... + 389882031.

It is an arithmetic number, because the mean of its divisors is an integer number (52780225428555).

Almost surely, 2^{211120122221093} is an apocalyptic number.

It is an amenable number.

211120122221093 is a deficient number, since it is larger than the sum of its proper divisors (779493127).

211120122221093 is an equidigital number, since it uses as much as digits as its factorization.

211120122221093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779493126.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 211120122221093 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, ninety-three".