22222212110001 has 32 divisors (see below), whose sum is σ = 33132498981120. Its totient is φ = 14719997365632.

The previous prime is 22222212109973. The next prime is 22222212110039. The reversal of 22222212110001 is 10001121222222.

It is a happy number.

22222212110001 is a `hidden beast` number, since 222 + 222 + 121 + 100 + 0 + 1 = 666.

It is not a de Polignac number, because 22222212110001 - 2³⁸ = 21947334203057 is a prime.

It is a super-2 number, since 2×22222212110001² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22222212110201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195246556 + ... + 195360338.

It is an arithmetic number, because the mean of its divisors is an integer number (1035390593160).

Almost surely, 2^{22222212110001} is an apocalyptic number.

It is an amenable number.

22222212110001 is a deficient number, since it is larger than the sum of its proper divisors (10910286871119).

22222212110001 is a wasteful number, since it uses less digits than its factorization.

22222212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160022 (or 160016 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22222212110001 its reverse (10001121222222), we get a palindrome (32223333332223).

The spelling of 22222212110001 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred ten thousand, one".