122111111047 has 2 divisors, whose sum is σ = 122111111048. Its totient is φ = 122111111046.

The previous prime is 122111111011. The next prime is 122111111051. The reversal of 122111111047 is 740111111221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122111111047 - 2²³ = 122102722439 is a prime.

It is a super-2 number, since 2×122111111047² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122111111747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055555523 + 61055555524.

It is an arithmetic number, because the mean of its divisors is an integer number (61055555524).

Almost surely, 2^122111111047 is an apocalyptic number.

122111111047 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111111047 is an equidigital number, since it uses as much as digits as its factorization.

122111111047 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 22.

Adding to 122111111047 its reverse (740111111221), we get a palindrome (862222222268).

The spelling of 122111111047 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred eleven thousand, forty-seven".