211122007 has 2 divisors, whose sum is σ = 211122008. Its totient is φ = 211122006.

The previous prime is 211121987. The next prime is 211122011. The reversal of 211122007 is 700221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211122007 - 2¹⁹ = 210597719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211122047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561003 + 105561004.

It is an arithmetic number, because the mean of its divisors is an integer number (105561004).

Almost surely, 2^211122007 is an apocalyptic number.

211122007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122007 is an equidigital number, since it uses as much as digits as its factorization.

211122007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 211122007 is about 14530.0380935495. The cubic root of 211122007 is about 595.4489063408.

Adding to 211122007 its reverse (700221112), we get a palindrome (911343119).

The spelling of 211122007 in words is "two hundred eleven million, one hundred twenty-two thousand, seven".