211344123332220 has 48 divisors (see below), whose sum is σ = 606196802540448. Its totient is φ = 54983836963840.

The previous prime is 211344123332207. The next prime is 211344123332233. The reversal of 211344123332220 is 22233321443112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211344123332207) and next prime (211344123332233).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42956120169 + ... + 42956125088.

It is an arithmetic number, because the mean of its divisors is an integer number (12629100052926).

Almost surely, 2^{211344123332220} is an apocalyptic number.

211344123332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211344123332220 is an abundant number, since it is smaller than the sum of its proper divisors (394852679208228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211344123332220 is a wasteful number, since it uses less digits than its factorization.

211344123332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85912245310 (or 85912245308 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 211344123332220 its reverse (22233321443112), we get a palindrome (233577444775332).

The spelling of 211344123332220 in words is "two hundred eleven trillion, three hundred forty-four billion, one hundred twenty-three million, three hundred thirty-two thousand, two hundred twenty".