11111021220107 has 2 divisors, whose sum is σ = 11111021220108. Its totient is φ = 11111021220106.

The previous prime is 11111021220077. The next prime is 11111021220199. The reversal of 11111021220107 is 70102212011111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111021220107 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111020220107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555510610053 + 5555510610054.

It is an arithmetic number, because the mean of its divisors is an integer number (5555510610054).

Almost surely, 2^{11111021220107} is an apocalyptic number.

11111021220107 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111021220107 is an equidigital number, since it uses as much as digits as its factorization.

11111021220107 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 20.

Adding to 11111021220107 its reverse (70102212011111), we get a palindrome (81213233231218).

The spelling of 11111021220107 in words is "eleven trillion, one hundred eleven billion, twenty-one million, two hundred twenty thousand, one hundred seven".