1001222018 has 8 divisors (see below), whose sum is σ = 1502154048. Its totient is φ = 500504004.

The previous prime is 1001222017. The next prime is 1001222023. The reversal of 1001222018 is 8102221001.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1001221987 and 1001222005.

It is not an unprimeable number, because it can be changed into a prime (1001222017) 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, 41246 + ... + 60857.

It is an arithmetic number, because the mean of its divisors is an integer number (187769256).

Almost surely, 2^1001222018 is an apocalyptic number.

1001222018 is a deficient number, since it is larger than the sum of its proper divisors (500932030).

1001222018 is a wasteful number, since it uses less digits than its factorization.

1001222018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107008.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1001222018 is about 31642.0925034992. The cubic root of 1001222018 is about 1000.4071735206.

Adding to 1001222018 its reverse (8102221001), we get a palindrome (9103443019).

The spelling of 1001222018 in words is "one billion, one million, two hundred twenty-two thousand, eighteen".