1020221001199 has 2 divisors, whose sum is σ = 1020221001200. Its totient is φ = 1020221001198.

The previous prime is 1020221001197. The next prime is 1020221001203. The reversal of 1020221001199 is 9911001220201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020221001199 - 2¹ = 1020221001197 is a prime.

Together with 1020221001197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020221001197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110500599 + 510110500600.

It is an arithmetic number, because the mean of its divisors is an integer number (510110500600).

Almost surely, 2^{1020221001199} is an apocalyptic number.

1020221001199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020221001199 is an equidigital number, since it uses as much as digits as its factorization.

1020221001199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 1020221001199 in words is "one trillion, twenty billion, two hundred twenty-one million, one thousand, one hundred ninety-nine".