1000220343321 has 16 divisors (see below), whose sum is σ = 1339698293120. Its totient is φ = 663780199680.

The previous prime is 1000220343301. The next prime is 1000220343341. The reversal of 1000220343321 is 1233430220001.

1000220343321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1000220343301) and next prime (1000220343341).

It is not a de Polignac number, because 1000220343321 - 2⁷ = 1000220343193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000220343301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533315 + ... + 2086023.

It is an arithmetic number, because the mean of its divisors is an integer number (83731143320).

Almost surely, 2^{1000220343321} is an apocalyptic number.

It is an amenable number.

1000220343321 is a deficient number, since it is larger than the sum of its proper divisors (339477949799).

1000220343321 is a wasteful number, since it uses less digits than its factorization.

1000220343321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555456.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1000220343321 its reverse (1233430220001), we get a palindrome (2233650563322).

The spelling of 1000220343321 in words is "one trillion, two hundred twenty million, three hundred forty-three thousand, three hundred twenty-one".