12200121220811 has 2 divisors, whose sum is σ = 12200121220812. Its totient is φ = 12200121220810.

The previous prime is 12200121220799. The next prime is 12200121220841. The reversal of 12200121220811 is 11802212100221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12200121220811 - 2¹⁰ = 12200121219787 is a prime.

It is not a weakly prime, because it can be changed into another prime (12200121220841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100060610405 + 6100060610406.

It is an arithmetic number, because the mean of its divisors is an integer number (6100060610406).

Almost surely, 2^{12200121220811} is an apocalyptic number.

12200121220811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200121220811 is an equidigital number, since it uses as much as digits as its factorization.

12200121220811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 23.

The spelling of 12200121220811 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, two hundred twenty thousand, eight hundred eleven".