221022001012211 has 8 divisors (see below), whose sum is σ = 252608192271360. Its totient is φ = 189438714674568.

The previous prime is 221022001012193. The next prime is 221022001012273. The reversal of 221022001012211 is 112210100220122.

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 221022001012211 - 2⁶ = 221022001012147 is a prime.

It is a super-2 number, since 2×221022001012211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221022001012211.

It is not an unprimeable number, because it can be changed into a prime (221022001012291) 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, 726067331 + ... + 726371676.

It is an arithmetic number, because the mean of its divisors is an integer number (31576024033920).

Almost surely, 2^{221022001012211} is an apocalyptic number.

221022001012211 is a deficient number, since it is larger than the sum of its proper divisors (31586191259149).

221022001012211 is a wasteful number, since it uses less digits than its factorization.

221022001012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452460753.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221022001012211 its reverse (112210100220122), we get a palindrome (333232101232333).

The spelling of 221022001012211 in words is "two hundred twenty-one trillion, twenty-two billion, one million, twelve thousand, two hundred eleven".