211321121222 has 32 divisors (see below), whose sum is σ = 328444243200. Its totient is φ = 101866176000.

The previous prime is 211321121131. The next prime is 211321121227. The reversal of 211321121222 is 222121123112.

211321121222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×211321121222³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211321121194 and 211321121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211321121227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20509472 + ... + 20519772.

It is an arithmetic number, because the mean of its divisors is an integer number (10263882600).

Almost surely, 2^211321121222 is an apocalyptic number.

211321121222 is a deficient number, since it is larger than the sum of its proper divisors (117123121978).

211321121222 is a wasteful number, since it uses less digits than its factorization.

211321121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552.

The product of its digits is 192, while the sum is 20.

Adding to 211321121222 its reverse (222121123112), we get a palindrome (433442244334).

The spelling of 211321121222 in words is "two hundred eleven billion, three hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".