211243240122 has 8 divisors (see below), whose sum is σ = 422486480256. Its totient is φ = 70414413372.

The previous prime is 211243240097. The next prime is 211243240177. The reversal of 211243240122 is 221042342112.

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

211243240122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 211243240092 and 211243240101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17603603338 + ... + 17603603349.

It is an arithmetic number, because the mean of its divisors is an integer number (52810810032).

Almost surely, 2^211243240122 is an apocalyptic number.

211243240122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211243240122 is a wasteful number, since it uses less digits than its factorization.

211243240122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35207206692.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 211243240122 its reverse (221042342112), we get a palindrome (432285582234).

The spelling of 211243240122 in words is "two hundred eleven billion, two hundred forty-three million, two hundred forty thousand, one hundred twenty-two".