1000212222 has 16 divisors (see below), whose sum is σ = 2013674112. Its totient is φ = 331195800.

The previous prime is 1000212211. The next prime is 1000212229. The reversal of 1000212222 is 2222120001.

It is a junction number, because it is equal to n+sod(n) for n = 1000212198 and 1000212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000212229) 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, 551088 + ... + 552899.

It is an arithmetic number, because the mean of its divisors is an integer number (125854632).

Almost surely, 2^1000212222 is an apocalyptic number.

1000212222 is an abundant number, since it is smaller than the sum of its proper divisors (1013461890).

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

1000212222 is a wasteful number, since it uses less digits than its factorization.

1000212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104143.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1000212222 is about 31626.1319481216. The cubic root of 1000212222 is about 1000.0707356630.

Adding to 1000212222 its reverse (2222120001), we get a palindrome (3222332223).

The spelling of 1000212222 in words is "one billion, two hundred twelve thousand, two hundred twenty-two".