232216006021 has 2 divisors, whose sum is σ = 232216006022. Its totient is φ = 232216006020.

The previous prime is 232216005859. The next prime is 232216006091. The reversal of 232216006021 is 120600612232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136224475396 + 95991530625 = 369086^2 + 309825^2 .

It is a cyclic number.

It is not a de Polignac number, because 232216006021 - 2¹¹ = 232216003973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232216006091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116108003010 + 116108003011.

It is an arithmetic number, because the mean of its divisors is an integer number (116108003011).

Almost surely, 2^232216006021 is an apocalyptic number.

It is an amenable number.

232216006021 is a deficient number, since it is larger than the sum of its proper divisors (1).

232216006021 is an equidigital number, since it uses as much as digits as its factorization.

232216006021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 232216006021 its reverse (120600612232), we get a palindrome (352816618253).

The spelling of 232216006021 in words is "two hundred thirty-two billion, two hundred sixteen million, six thousand, twenty-one".