1000521222 has 8 divisors (see below), whose sum is σ = 2001042456. Its totient is φ = 333507072.

The previous prime is 1000521217. The next prime is 1000521253. The reversal of 1000521222 is 2221250001.

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

1000521222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83376763 + ... + 83376774.

It is an arithmetic number, because the mean of its divisors is an integer number (250130307).

Almost surely, 2^1000521222 is an apocalyptic number.

1000521222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000521222 is a wasteful number, since it uses less digits than its factorization.

1000521222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166753542.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1000521222 is about 31631.0167715172. The cubic root of 1000521222 is about 1000.1737104896.

Adding to 1000521222 its reverse (2221250001), we get a palindrome (3221771223).

The spelling of 1000521222 in words is "one billion, five hundred twenty-one thousand, two hundred twenty-two".