211211110122 has 8 divisors (see below), whose sum is σ = 422422220256. Its totient is φ = 70403703372.

The previous prime is 211211110111. The next prime is 211211110153. The reversal of 211211110122 is 221011112112.

It is a happy number.

211211110122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

211211110122 is an admirable number.

It is a super-2 number, since 2×211211110122² (a number of 23 digits) contains 22 as substring.

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, 17600925838 + ... + 17600925849.

It is an arithmetic number, because the mean of its divisors is an integer number (52802777532).

Almost surely, 2^211211110122 is an apocalyptic number.

211211110122 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.

211211110122 is a wasteful number, since it uses less digits than its factorization.

211211110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35201851692.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211211110122 its reverse (221011112112), we get a palindrome (432222222234).

The spelling of 211211110122 in words is "two hundred eleven billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-two".