1002022331 has 8 divisors (see below), whose sum is σ = 1039254528. Its totient is φ = 965097000.

The previous prime is 1002022327. The next prime is 1002022339. The reversal of 1002022331 is 1332202001.

It is a happy number.

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 1002022331 - 2² = 1002022327 is a prime.

It is a super-2 number, since 2×1002022331² = 2008097503645347122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002022339) 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, 70055 + ... + 83136.

It is an arithmetic number, because the mean of its divisors is an integer number (129906816).

Almost surely, 2^1002022331 is an apocalyptic number.

1002022331 is a deficient number, since it is larger than the sum of its proper divisors (37232197).

1002022331 is a wasteful number, since it uses less digits than its factorization.

1002022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153433.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1002022331 is about 31654.7363122803. The cubic root of 1002022331 is about 1000.6736564185.

Adding to 1002022331 its reverse (1332202001), we get a palindrome (2334224332).

The spelling of 1002022331 in words is "one billion, two million, twenty-two thousand, three hundred thirty-one".