122121130247 has 2 divisors, whose sum is σ = 122121130248. Its totient is φ = 122121130246.

The previous prime is 122121130231. The next prime is 122121130297. The reversal of 122121130247 is 742031121221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122121130247 - 2⁴ = 122121130231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121130297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060565123 + 61060565124.

It is an arithmetic number, because the mean of its divisors is an integer number (61060565124).

Almost surely, 2^122121130247 is an apocalyptic number.

122121130247 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121130247 is an equidigital number, since it uses as much as digits as its factorization.

122121130247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 122121130247 its reverse (742031121221), we get a palindrome (864152251468).

The spelling of 122121130247 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thirty thousand, two hundred forty-seven".