211222011022121 has 8 divisors (see below), whose sum is σ = 230450016420288. Its totient is φ = 191998339690000.

The previous prime is 211222011022091. The next prime is 211222011022189. The reversal of 211222011022121 is 121220110222112.

211222011022121 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.

It is a cyclic number.

It is not a de Polignac number, because 211222011022121 - 2²⁶ = 211221943913257 is a prime.

It is a super-2 number, since 2×211222011022121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211222011022093 and 211222011022102.

It is not an unprimeable number, because it can be changed into a prime (211222011022921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083414605 + ... + 1083609546.

It is an arithmetic number, because the mean of its divisors is an integer number (28806252052536).

Almost surely, 2^{211222011022121} is an apocalyptic number.

It is an amenable number.

211222011022121 is a deficient number, since it is larger than the sum of its proper divisors (19228005398167).

211222011022121 is a wasteful number, since it uses less digits than its factorization.

211222011022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167033023.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211222011022121 its reverse (121220110222112), we get a palindrome (332442121244233).

The spelling of 211222011022121 in words is "two hundred eleven trillion, two hundred twenty-two billion, eleven million, twenty-two thousand, one hundred twenty-one".