12221000001983 has 2 divisors, whose sum is σ = 12221000001984. Its totient is φ = 12221000001982.

The previous prime is 12221000001929. The next prime is 12221000002019. The reversal of 12221000001983 is 38910000012221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221000001983 - 2¹⁰ = 12221000000959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221000003983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110500000991 + 6110500000992.

It is an arithmetic number, because the mean of its divisors is an integer number (6110500000992).

Almost surely, 2^{12221000001983} is an apocalyptic number.

12221000001983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221000001983 is an equidigital number, since it uses as much as digits as its factorization.

12221000001983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12221000001983 in words is "twelve trillion, two hundred twenty-one billion, one thousand, nine hundred eighty-three".