22101211111211 has 16 divisors (see below), whose sum is σ = 22246556419296. Its totient is φ = 21956343360000.

The previous prime is 22101211111183. The next prime is 22101211111249. The reversal of 22101211111211 is 11211111210122.

It is a cyclic number.

It is not a de Polignac number, because 22101211111211 - 2²⁶ = 22101144002347 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 22101211111211.

It is not an unprimeable number, because it can be changed into a prime (22101211116211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324311201 + ... + 324379341.

It is an arithmetic number, because the mean of its divisors is an integer number (1390409776206).

Almost surely, 2^{22101211111211} is an apocalyptic number.

22101211111211 is a deficient number, since it is larger than the sum of its proper divisors (145345308085).

22101211111211 is a wasteful number, since it uses less digits than its factorization.

22101211111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71614.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22101211111211 its reverse (11211111210122), we get a palindrome (33312322321333).

The spelling of 22101211111211 in words is "twenty-two trillion, one hundred one billion, two hundred eleven million, one hundred eleven thousand, two hundred eleven".