10120220111 has 2 divisors, whose sum is σ = 10120220112. Its totient is φ = 10120220110.

The previous prime is 10120220107. The next prime is 10120220147. The reversal of 10120220111 is 11102202101.

It is a weak prime.

It is an emirp because it is prime and its reverse (11102202101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10120220111 - 2² = 10120220107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10120220092 and 10120220101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120220191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060110055 + 5060110056.

It is an arithmetic number, because the mean of its divisors is an integer number (5060110056).

Almost surely, 2^10120220111 is an apocalyptic number.

10120220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120220111 is an equidigital number, since it uses as much as digits as its factorization.

10120220111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10120220111 its reverse (11102202101), we get a palindrome (21222422212).

The spelling of 10120220111 in words is "ten billion, one hundred twenty million, two hundred twenty thousand, one hundred eleven".