211222212101201 has 48 divisors (see below), whose sum is σ = 262949534277120. Its totient is φ = 165628227686400.

The previous prime is 211222212101189. The next prime is 211222212101279. The reversal of 211222212101201 is 102101212222112.

It is a de Polignac number, because none of the positive numbers 2^k-211222212101201 is a prime.

It is a super-2 number, since 2×211222212101201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222212101501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52262405 + ... + 56158733.

It is an arithmetic number, because the mean of its divisors is an integer number (5478115297440).

Almost surely, 2^{211222212101201} is an apocalyptic number.

It is an amenable number.

211222212101201 is a deficient number, since it is larger than the sum of its proper divisors (51727322175919).

211222212101201 is a wasteful number, since it uses less digits than its factorization.

211222212101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896706 (or 3896665 counting only the distinct ones).

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

Adding to 211222212101201 its reverse (102101212222112), we get a palindrome (313323424323313).

The spelling of 211222212101201 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twelve million, one hundred one thousand, two hundred one".