122001220811 has 2 divisors, whose sum is σ = 122001220812. Its totient is φ = 122001220810.

The previous prime is 122001220787. The next prime is 122001220819. The reversal of 122001220811 is 118022100221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122001220811 - 2²² = 121997026507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (122001220819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000610405 + 61000610406.

It is an arithmetic number, because the mean of its divisors is an integer number (61000610406).

Almost surely, 2^122001220811 is an apocalyptic number.

122001220811 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001220811 is an equidigital number, since it uses as much as digits as its factorization.

122001220811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 122001220811 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, eight hundred eleven".