211211201122 has 4 divisors (see below), whose sum is σ = 316816801686. Its totient is φ = 105605600560.

The previous prime is 211211201101. The next prime is 211211201167. The reversal of 211211201122 is 221102112112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194136290881 + 17074910241 = 440609^2 + 130671^2 .

It is a super-2 number, since 2×211211201122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211201096 and 211211201105.

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 as a sum of consecutive naturals, namely, 52802800279 + ... + 52802800282.

Almost surely, 2^211211201122 is an apocalyptic number.

211211201122 is a deficient number, since it is larger than the sum of its proper divisors (105605600564).

211211201122 is a wasteful number, since it uses less digits than its factorization.

211211201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105605600563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211211201122 its reverse (221102112112), we get a palindrome (432313313234).

The spelling of 211211201122 in words is "two hundred eleven billion, two hundred eleven million, two hundred one thousand, one hundred twenty-two".