211221002201 has 8 divisors (see below), whose sum is σ = 236042983008. Its totient is φ = 187335700000.

The previous prime is 211221002191. The next prime is 211221002257. The reversal of 211221002201 is 102200122112.

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 211221002201 - 2⁶ = 211221002137 is a prime.

It is a super-2 number, since 2×211221002201² (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 (211221002281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234169175 + ... + 234170076.

It is an arithmetic number, because the mean of its divisors is an integer number (29505372876).

Almost surely, 2^211221002201 is an apocalyptic number.

It is an amenable number.

211221002201 is a deficient number, since it is larger than the sum of its proper divisors (24821980807).

211221002201 is a wasteful number, since it uses less digits than its factorization.

211221002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468339303.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211221002201 its reverse (102200122112), we get a palindrome (313421124313).

The spelling of 211221002201 in words is "two hundred eleven billion, two hundred twenty-one million, two thousand, two hundred one".