1001220210223 has 4 divisors (see below), whose sum is σ = 1002869667520. Its totient is φ = 999570752928.

The previous prime is 1001220210167. The next prime is 1001220210227. The reversal of 1001220210223 is 3220120221001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001220210223 - 2¹⁷ = 1001220079151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001220210197 and 1001220210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001220210227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824727738 + ... + 824728951.

It is an arithmetic number, because the mean of its divisors is an integer number (250717416880).

Almost surely, 2^{1001220210223} is an apocalyptic number.

1001220210223 is a deficient number, since it is larger than the sum of its proper divisors (1649457297).

1001220210223 is an equidigital number, since it uses as much as digits as its factorization.

1001220210223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649457296.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1001220210223 its reverse (3220120221001), we get a palindrome (4221340431224).

The spelling of 1001220210223 in words is "one trillion, one billion, two hundred twenty million, two hundred ten thousand, two hundred twenty-three".