212421124211 has 8 divisors (see below), whose sum is σ = 223665746880. Its totient is φ = 201182957928.

The previous prime is 212421124193. The next prime is 212421124213. The reversal of 212421124211 is 112421124212.

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 212421124211 - 2³⁰ = 211347382387 is a prime.

It is a super-2 number, since 2×212421124211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212421124213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1546481 + ... + 1678226.

It is an arithmetic number, because the mean of its divisors is an integer number (27958218360).

Almost surely, 2^212421124211 is an apocalyptic number.

212421124211 is a deficient number, since it is larger than the sum of its proper divisors (11244622669).

212421124211 is a wasteful number, since it uses less digits than its factorization.

212421124211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228193.

The product of its digits is 512, while the sum is 23.

Adding to 212421124211 its reverse (112421124212), we get a palindrome (324842248423).

Subtracting from 212421124211 its reverse (112421124212), we obtain a palindrome (99999999999).

The spelling of 212421124211 in words is "two hundred twelve billion, four hundred twenty-one million, one hundred twenty-four thousand, two hundred eleven".