211222221220001 has 8 divisors (see below), whose sum is σ = 235417955539680. Its totient is φ = 188334364431168.

The previous prime is 211222221219983. The next prime is 211222221220013. The reversal of 211222221220001 is 100022122222112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211222221220001 is a prime.

It is a super-2 number, since 2×211222221220001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222221220201) 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, 326969382371 + ... + 326969383016.

It is an arithmetic number, because the mean of its divisors is an integer number (29427244442460).

Almost surely, 2^{211222221220001} is an apocalyptic number.

It is an amenable number.

211222221220001 is a deficient number, since it is larger than the sum of its proper divisors (24195734319679).

211222221220001 is a wasteful number, since it uses less digits than its factorization.

211222221220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653938765423.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211222221220001 its reverse (100022122222112), we get a palindrome (311244343442113).

The spelling of 211222221220001 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, one".