122012210021047 has 2 divisors, whose sum is σ = 122012210021048. Its totient is φ = 122012210021046.

The previous prime is 122012210021017. The next prime is 122012210021129. The reversal of 122012210021047 is 740120012210221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122012210021047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012210021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006105010523 + 61006105010524.

It is an arithmetic number, because the mean of its divisors is an integer number (61006105010524).

Almost surely, 2^{122012210021047} is an apocalyptic number.

122012210021047 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012210021047 is an equidigital number, since it uses as much as digits as its factorization.

122012210021047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 122012210021047 its reverse (740120012210221), we get a palindrome (862132222231268).

The spelling of 122012210021047 in words is "one hundred twenty-two trillion, twelve billion, two hundred ten million, twenty-one thousand, forty-seven".