122111011147 has 2 divisors, whose sum is σ = 122111011148. Its totient is φ = 122111011146.

The previous prime is 122111011111. The next prime is 122111011157. The reversal of 122111011147 is 741110111221.

It is a strong prime.

It is an emirp because it is prime and its reverse (741110111221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122111011147 - 2⁷ = 122111011019 is a prime.

It is a super-2 number, since 2×122111011147² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122111011157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055505573 + 61055505574.

It is an arithmetic number, because the mean of its divisors is an integer number (61055505574).

Almost surely, 2^122111011147 is an apocalyptic number.

122111011147 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111011147 is an equidigital number, since it uses as much as digits as its factorization.

122111011147 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 122111011147 its reverse (741110111221), we get a palindrome (863221122368).

The spelling of 122111011147 in words is "one hundred twenty-two billion, one hundred eleven million, eleven thousand, one hundred forty-seven".