211222220001201 has 24 divisors (see below), whose sum is σ = 310270913272320. Its totient is φ = 138427681860000.

The previous prime is 211222220001187. The next prime is 211222220001277. The reversal of 211222220001201 is 102100022222112.

It is a happy number.

211222220001201 is a `hidden beast` number, since 21 + 1 + 222 + 220 + 0 + 0 + 1 + 201 = 666.

It is not a de Polignac number, because 211222220001201 - 2²⁶ = 211222152892337 is a prime.

It is a super-2 number, since 2×211222220001201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222220001281) 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, 315478371 + ... + 316147191.

It is an arithmetic number, because the mean of its divisors is an integer number (12927954719680).

Almost surely, 2^{211222220001201} is an apocalyptic number.

It is an amenable number.

211222220001201 is a deficient number, since it is larger than the sum of its proper divisors (99048693271119).

211222220001201 is a wasteful number, since it uses less digits than its factorization.

211222220001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263637 (or 1263634 counting only the distinct ones).

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

Adding to 211222220001201 its reverse (102100022222112), we get a palindrome (313322242223313).

The spelling of 211222220001201 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, one thousand, two hundred one".