1000220110993 has 2 divisors, whose sum is σ = 1000220110994. Its totient is φ = 1000220110992.

The previous prime is 1000220110969. The next prime is 1000220111021. The reversal of 1000220110993 is 3990110220001.

It is an a-pointer prime, because the next prime (1000220111021) can be obtained adding 1000220110993 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 797041843984 + 203178267009 = 892772^2 + 450753^2 .

It is an emirp because it is prime and its reverse (3990110220001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000220110993 - 2³³ = 991630176401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000220110913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500110055496 + 500110055497.

It is an arithmetic number, because the mean of its divisors is an integer number (500110055497).

Almost surely, 2^{1000220110993} is an apocalyptic number.

It is an amenable number.

1000220110993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000220110993 is an equidigital number, since it uses as much as digits as its factorization.

1000220110993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

Adding to 1000220110993 its reverse (3990110220001), we get a palindrome (4990330330994).

The spelling of 1000220110993 in words is "one trillion, two hundred twenty million, one hundred ten thousand, nine hundred ninety-three".