201622013 has 2 divisors, whose sum is σ = 201622014. Its totient is φ = 201622012.

The previous prime is 201622009. The next prime is 201622027. The reversal of 201622013 is 310226102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201583204 + 38809 = 14198^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 201622013 - 2² = 201622009 is a prime.

It is a super-2 number, since 2×201622013² = 81302872252344338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201621982 and 201622000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201622033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100811006 + 100811007.

It is an arithmetic number, because the mean of its divisors is an integer number (100811007).

Almost surely, 2^201622013 is an apocalyptic number.

It is an amenable number.

201622013 is a deficient number, since it is larger than the sum of its proper divisors (1).

201622013 is an equidigital number, since it uses as much as digits as its factorization.

201622013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201622013 is about 14199.3666408048. The cubic root of 201622013 is about 586.3802245704.

Adding to 201622013 its reverse (310226102), we get a palindrome (511848115).

The spelling of 201622013 in words is "two hundred one million, six hundred twenty-two thousand, thirteen".