211211021222122 has 8 divisors (see below), whose sum is σ = 319953329178372. Its totient is φ = 104559911496000.

The previous prime is 211211021222059. The next prime is 211211021222143. The reversal of 211211021222122 is 221222120112112.

It can be written as a sum of positive squares in 2 ways, for example, as 134514044724361 + 76696976497761 = 11598019^2 + 8757681^2 .

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

It is a super-2 number, since 2×211211021222122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211021222093 and 211211021222102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522799557279 + ... + 522799557682.

Almost surely, 2^{211211021222122} is an apocalyptic number.

211211021222122 is a deficient number, since it is larger than the sum of its proper divisors (108742307956250).

211211021222122 is a wasteful number, since it uses less digits than its factorization.

211211021222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045599115064.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211211021222122 its reverse (221222120112112), we get a palindrome (432433141334234).

The spelling of 211211021222122 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".