22212121207 has 2 divisors, whose sum is σ = 22212121208. Its totient is φ = 22212121206.

The previous prime is 22212121201. The next prime is 22212121213. The reversal of 22212121207 is 70212121222.

It is a balanced prime because it is at equal distance from previous prime (22212121201) and next prime (22212121213).

It is a cyclic number.

It is not a de Polignac number, because 22212121207 - 2¹⁹ = 22211596919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212121201) 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 as a sum of consecutive naturals, namely, 11106060603 + 11106060604.

It is an arithmetic number, because the mean of its divisors is an integer number (11106060604).

Almost surely, 2^22212121207 is an apocalyptic number.

22212121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212121207 is an equidigital number, since it uses as much as digits as its factorization.

22212121207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 22212121207 its reverse (70212121222), we get a palindrome (92424242429).

The spelling of 22212121207 in words is "twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred seven".