20111222107 has 2 divisors, whose sum is σ = 20111222108. Its totient is φ = 20111222106.

The previous prime is 20111222083. The next prime is 20111222119. The reversal of 20111222107 is 70122211102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20111222107 - 2¹⁹ = 20110697819 is a prime.

It is a super-2 number, since 2×20111222107² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20111222177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055611053 + 10055611054.

It is an arithmetic number, because the mean of its divisors is an integer number (10055611054).

Almost surely, 2^20111222107 is an apocalyptic number.

20111222107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111222107 is an equidigital number, since it uses as much as digits as its factorization.

20111222107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 20111222107 its reverse (70122211102), we get a palindrome (90233433209).

The spelling of 20111222107 in words is "twenty billion, one hundred eleven million, two hundred twenty-two thousand, one hundred seven".