122102021121247 has 2 divisors, whose sum is σ = 122102021121248. Its totient is φ = 122102021121246.

The previous prime is 122102021121193. The next prime is 122102021121259. The reversal of 122102021121247 is 742121120201221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122102021121247 - 2²³ = 122102012732639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122102021151247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051010560623 + 61051010560624.

It is an arithmetic number, because the mean of its divisors is an integer number (61051010560624).

Almost surely, 2^{122102021121247} is an apocalyptic number.

122102021121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102021121247 is an equidigital number, since it uses as much as digits as its factorization.

122102021121247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 122102021121247 its reverse (742121120201221), we get a palindrome (864223141322468).

The spelling of 122102021121247 in words is "one hundred twenty-two trillion, one hundred two billion, twenty-one million, one hundred twenty-one thousand, two hundred forty-seven".