12200110001921 has 2 divisors, whose sum is σ = 12200110001922. Its totient is φ = 12200110001920.

The previous prime is 12200110001879. The next prime is 12200110002011. The reversal of 12200110001921 is 12910001100221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11893566177025 + 306543824896 = 3448705^2 + 553664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200110001921 - 2²⁶ = 12200042893057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12200110001893 and 12200110001902.

It is not a weakly prime, because it can be changed into another prime (12200110001221) 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, 6100055000960 + 6100055000961.

It is an arithmetic number, because the mean of its divisors is an integer number (6100055000961).

Almost surely, 2^{12200110001921} is an apocalyptic number.

It is an amenable number.

12200110001921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200110001921 is an equidigital number, since it uses as much as digits as its factorization.

12200110001921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12200110001921 in words is "twelve trillion, two hundred billion, one hundred ten million, one thousand, nine hundred twenty-one".