1000002216 has 64 divisors (see below), whose sum is σ = 2587115520. Its totient is φ = 321773760.

The previous prime is 1000002193. The next prime is 1000002233. The reversal of 1000002216 is 6122000001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343021 + ... + 345923.

It is an arithmetic number, because the mean of its divisors is an integer number (40423680).

Almost surely, 2^1000002216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000002216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293557760).

1000002216 is an abundant number, since it is smaller than the sum of its proper divisors (1587113304).

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

1000002216 is a wasteful number, since it uses less digits than its factorization.

1000002216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1000002216 is about 31622.8116397009. The cubic root of 1000002216 is about 1000.0007386661. Note that the first 3 decimals are identical.

Adding to 1000002216 its reverse (6122000001), we get a palindrome (7122002217).

The spelling of 1000002216 in words is "one billion, two thousand, two hundred sixteen".