211212012122 has 8 divisors (see below), whose sum is σ = 322011756372. Its totient is φ = 103874760000.

The previous prime is 211212012107. The next prime is 211212012169. The reversal of 211212012122 is 221210212112.

211212012122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 207371855161 + 3840156961 = 455381^2 + 61969^2 .

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

It is a super-2 number, since 2×211212012122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211212012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865622879 + ... + 865623122.

Almost surely, 2^211212012122 is an apocalyptic number.

211212012122 is a deficient number, since it is larger than the sum of its proper divisors (110799744250).

211212012122 is a wasteful number, since it uses less digits than its factorization.

211212012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731246064.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212012122 its reverse (221210212112), we get a palindrome (432422224234).

The spelling of 211212012122 in words is "two hundred eleven billion, two hundred twelve million, twelve thousand, one hundred twenty-two".