1001002213 has 16 divisors (see below), whose sum is σ = 1067817600. Its totient is φ = 935668800.

The previous prime is 1001002169. The next prime is 1001002217. The reversal of 1001002213 is 3122001001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001002213 is a prime.

It is a super-4 number, since 4×1001002213⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001002213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001002217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688195 + ... + 689647.

It is an arithmetic number, because the mean of its divisors is an integer number (66738600).

Almost surely, 2^1001002213 is an apocalyptic number.

It is an amenable number.

1001002213 is a deficient number, since it is larger than the sum of its proper divisors (66815387).

1001002213 is a wasteful number, since it uses less digits than its factorization.

1001002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1001002213 is about 31638.6190122135. The cubic root of 1001002213 is about 1000.3339594587. Note that the first 3 decimals are identical.

Adding to 1001002213 its reverse (3122001001), we get a palindrome (4123003214).

The spelling of 1001002213 in words is "one billion, one million, two thousand, two hundred thirteen".