2221220212207 has 2 divisors, whose sum is σ = 2221220212208. Its totient is φ = 2221220212206.

The previous prime is 2221220212187. The next prime is 2221220212231. The reversal of 2221220212207 is 7022120221222.

2221220212207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221220212207 - 2³¹ = 2219072728559 is a prime.

It is a super-2 number, since 2×2221220212207² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221220212907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110610106103 + 1110610106104.

It is an arithmetic number, because the mean of its divisors is an integer number (1110610106104).

Almost surely, 2^{2221220212207} is an apocalyptic number.

2221220212207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221220212207 is an equidigital number, since it uses as much as digits as its factorization.

2221220212207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 2221220212207 its reverse (7022120221222), we get a palindrome (9243340433429).

The spelling of 2221220212207 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, two hundred seven".