1002022231 has 8 divisors (see below), whose sum is σ = 1158966144. Its totient is φ = 848527800.

The previous prime is 1002022223. The next prime is 1002022267. The reversal of 1002022231 is 1322202001.

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 1002022231 - 2³ = 1002022223 is a prime.

It is a super-2 number, since 2×1002022231² = 2008097102836434722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861745 + ... + 862906.

It is an arithmetic number, because the mean of its divisors is an integer number (144870768).

Almost surely, 2^1002022231 is an apocalyptic number.

1002022231 is a deficient number, since it is larger than the sum of its proper divisors (156943913).

1002022231 is an equidigital number, since it uses as much as digits as its factorization.

1002022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724741.

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

The square root of 1002022231 is about 31654.7347327378. The cubic root of 1002022231 is about 1000.6736231300.

Adding to 1002022231 its reverse (1322202001), we get a palindrome (2324224232).

The spelling of 1002022231 in words is "one billion, two million, twenty-two thousand, two hundred thirty-one".