22111007 has 2 divisors, whose sum is σ = 22111008. Its totient is φ = 22111006.

The previous prime is 22110997. The next prime is 22111039. The reversal of 22111007 is 70011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111007 - 2¹² = 22106911 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22110982 and 22111000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055503 + 11055504.

It is an arithmetic number, because the mean of its divisors is an integer number (11055504).

Almost surely, 2^22111007 is an apocalyptic number.

22111007 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111007 is an equidigital number, since it uses as much as digits as its factorization.

22111007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 22111007 is about 4702.2342561808. The cubic root of 22111007 is about 280.6744244077.

Adding to 22111007 its reverse (70011122), we get a palindrome (92122129).

The spelling of 22111007 in words is "twenty-two million, one hundred eleven thousand, seven".