2011221220207 has 2 divisors, whose sum is σ = 2011221220208. Its totient is φ = 2011221220206.

The previous prime is 2011221220199. The next prime is 2011221220213. The reversal of 2011221220207 is 7020221221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011221220207 - 2³ = 2011221220199 is a prime.

It is a super-2 number, since 2×2011221220207² (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 (2011221220507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610610103 + 1005610610104.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610610104).

Almost surely, 2^{2011221220207} is an apocalyptic number.

2011221220207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011221220207 is an equidigital number, since it uses as much as digits as its factorization.

2011221220207 is an evil number, because the sum of its binary digits is even.

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

Adding to 2011221220207 its reverse (7020221221102), we get a palindrome (9031442441309).

The spelling of 2011221220207 in words is "two trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, two hundred seven".