22221100201211 has 8 divisors (see below), whose sum is σ = 23196973493664. Its totient is φ = 21246038450560.

The previous prime is 22221100201169. The next prime is 22221100201217. The reversal of 22221100201211 is 11210200112222.

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 22221100201211 - 2³⁸ = 21946222294267 is a prime.

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 22221100201211.

It is not an unprimeable number, because it can be changed into a prime (22221100201217) 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, 202829486 + ... + 202939011.

It is an arithmetic number, because the mean of its divisors is an integer number (2899621686708).

Almost surely, 2^{22221100201211} is an apocalyptic number.

22221100201211 is a deficient number, since it is larger than the sum of its proper divisors (975873292453).

22221100201211 is a wasteful number, since it uses less digits than its factorization.

22221100201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405770901.

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

Adding to 22221100201211 its reverse (11210200112222), we get a palindrome (33431300313433).

The spelling of 22221100201211 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred million, two hundred one thousand, two hundred eleven".