211222110010121 has 12 divisors (see below), whose sum is σ = 245733483737232. Its totient is φ = 181028268241128.

The previous prime is 211222110010103. The next prime is 211222110010201. The reversal of 211222110010121 is 121010011222112.

It is not a de Polignac number, because 211222110010121 - 2⁶ = 211222110010057 is a prime.

It is a super-2 number, since 2×211222110010121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211222110010121.

It is not an unprimeable number, because it can be changed into a prime (211222110015121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228756275 + ... + 229677768.

It is an arithmetic number, because the mean of its divisors is an integer number (20477790311436).

Almost surely, 2^{211222110010121} is an apocalyptic number.

It is an amenable number.

211222110010121 is a deficient number, since it is larger than the sum of its proper divisors (34511373727111).

211222110010121 is an equidigital number, since it uses as much as digits as its factorization.

211222110010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458443460 (or 458443453 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211222110010121 its reverse (121010011222112), we get a palindrome (332232121232233).

The spelling of 211222110010121 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, ten thousand, one hundred twenty-one".