211222220012001 has 24 divisors (see below), whose sum is σ = 341830554259584. Its totient is φ = 124553643248160.

The previous prime is 211222220011991. The next prime is 211222220012033. The reversal of 211222220012001 is 100210022222112.

It is a happy number.

211222220012001 is a `hidden beast` number, since 21 + 1 + 222 + 220 + 0 + 1 + 200 + 1 = 666.

It is not a de Polignac number, because 211222220012001 - 2¹⁵ = 211222219979233 is a prime.

It is a super-2 number, since 2×211222220012001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222220012071) 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 23 ways as a sum of consecutive naturals, for example, 28831858201 + ... + 28831865526.

It is an arithmetic number, because the mean of its divisors is an integer number (14242939760816).

Almost surely, 2^{211222220012001} is an apocalyptic number.

It is an amenable number.

211222220012001 is a deficient number, since it is larger than the sum of its proper divisors (130608334247583).

211222220012001 is a wasteful number, since it uses less digits than its factorization.

211222220012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57663723781 (or 57663723778 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211222220012001 its reverse (100210022222112), we get a palindrome (311432242234113).

The spelling of 211222220012001 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, one".