1000222321 has 8 divisors (see below), whose sum is σ = 1192811904. Its totient is φ = 820057920.

The previous prime is 1000222309. The next prime is 1000222331. The reversal of 1000222321 is 1232220001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000222321 - 2¹⁹ = 999698033 is a prime.

It is a super-3 number, since 3×1000222321³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000222331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106120 + ... + 3106441.

It is an arithmetic number, because the mean of its divisors is an integer number (149101488).

Almost surely, 2^1000222321 is an apocalyptic number.

It is an amenable number.

1000222321 is a deficient number, since it is larger than the sum of its proper divisors (192589583).

1000222321 is an equidigital number, since it uses as much as digits as its factorization.

1000222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212591.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1000222321 is about 31626.2916099880. The cubic root of 1000222321 is about 1000.0741015088.

Adding to 1000222321 its reverse (1232220001), we get a palindrome (2232442322).

It can be divided in two parts, 10002 and 22321, that added together give a palindrome (32323).

The spelling of 1000222321 in words is "one billion, two hundred twenty-two thousand, three hundred twenty-one".