122222021011009 has 2 divisors, whose sum is σ = 122222021011010. Its totient is φ = 122222021011008.

The previous prime is 122222021010923. The next prime is 122222021011033. The reversal of 122222021011009 is 900110120222221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121615019526400 + 607001484609 = 11027920^2 + 779103^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222021011009 - 2¹¹ = 122222021008961 is a prime.

It is not a weakly prime, because it can be changed into another prime (122222021011709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111010505504 + 61111010505505.

It is an arithmetic number, because the mean of its divisors is an integer number (61111010505505).

Almost surely, 2^{122222021011009} is an apocalyptic number.

It is an amenable number.

122222021011009 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222021011009 is an equidigital number, since it uses as much as digits as its factorization.

122222021011009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 122222021011009 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, twenty-one million, eleven thousand, nine".