211222212001 has 8 divisors (see below), whose sum is σ = 213384567200. Its totient is φ = 209069039520.

The previous prime is 211222211989. The next prime is 211222212011. The reversal of 211222212001 is 100212222112.

It is a happy number.

211222212001 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 211222212001 - 2⁹ = 211222211489 is a prime.

It is a super-2 number, since 2×211222212001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222212011) 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 7 ways as a sum of consecutive naturals, for example, 2249436 + ... + 2341453.

It is an arithmetic number, because the mean of its divisors is an integer number (26673070900).

Almost surely, 2^211222212001 is an apocalyptic number.

It is an amenable number.

211222212001 is a deficient number, since it is larger than the sum of its proper divisors (2162355199).

211222212001 is a wasteful number, since it uses less digits than its factorization.

211222212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591359.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211222212001 its reverse (100212222112), we get a palindrome (311434434113).

The spelling of 211222212001 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, one".