22111211210211 has 6 divisors (see below), whose sum is σ = 31938416192540. Its totient is φ = 14740807473468.

The previous prime is 22111211210141. The next prime is 22111211210267. The reversal of 22111211210211 is 11201211211122.

It is a happy number.

22111211210211 is a `hidden beast` number, since 2 + 21 + 11 + 211 + 210 + 211 = 666.

It is not a de Polignac number, because 22111211210211 - 2⁹ = 22111211209699 is a prime.

It is a super-4 number, since 4×22111211210211⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111211210111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228400622781 + ... + 1228400622798.

Almost surely, 2^{22111211210211} is an apocalyptic number.

22111211210211 is a deficient number, since it is larger than the sum of its proper divisors (9827204982329).

22111211210211 is a wasteful number, since it uses less digits than its factorization.

22111211210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456801245585 (or 2456801245582 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22111211210211 its reverse (11201211211122), we get a palindrome (33312422421333).

The spelling of 22111211210211 in words is "twenty-two trillion, one hundred eleven billion, two hundred eleven million, two hundred ten thousand, two hundred eleven".