1002213181 has 2 divisors, whose sum is σ = 1002213182. Its totient is φ = 1002213180.

The previous prime is 1002213151. The next prime is 1002213211. The reversal of 1002213181 is 1813122001.

It is a balanced prime because it is at equal distance from previous prime (1002213151) and next prime (1002213211).

It can be written as a sum of positive squares in only one way, i.e., 749116900 + 253096281 = 27370^2 + 15909^2 .

It is an emirp because it is prime and its reverse (1813122001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002213181 - 2²⁵ = 968658749 is a prime.

It is a super-2 number, since 2×1002213181² = 2008862520340277522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002213151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501106590 + 501106591.

It is an arithmetic number, because the mean of its divisors is an integer number (501106591).

Almost surely, 2^1002213181 is an apocalyptic number.

It is an amenable number.

1002213181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002213181 is an equidigital number, since it uses as much as digits as its factorization.

1002213181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1002213181 is about 31657.7507255332. The cubic root of 1002213181 is about 1000.7371834271.

Adding to 1002213181 its reverse (1813122001), we get a palindrome (2815335182).

The spelling of 1002213181 in words is "one billion, two million, two hundred thirteen thousand, one hundred eighty-one".