221002000231 has 2 divisors, whose sum is σ = 221002000232. Its totient is φ = 221002000230.

The previous prime is 221002000223. The next prime is 221002000267. The reversal of 221002000231 is 132000200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002000231 - 2³ = 221002000223 is a prime.

It is a super-2 number, since 2×221002000231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221002000201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501000115 + 110501000116.

It is an arithmetic number, because the mean of its divisors is an integer number (110501000116).

Almost surely, 2^221002000231 is an apocalyptic number.

221002000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002000231 is an equidigital number, since it uses as much as digits as its factorization.

221002000231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 221002000231 its reverse (132000200122), we get a palindrome (353002200353).

The spelling of 221002000231 in words is "two hundred twenty-one billion, two million, two hundred thirty-one", and thus it is an aban number.