232012201021 has 2 divisors, whose sum is σ = 232012201022. Its totient is φ = 232012201020.

The previous prime is 232012201013. The next prime is 232012201079. The reversal of 232012201021 is 120102210232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207698036121 + 24314164900 = 455739^2 + 155930^2 .

It is a cyclic number.

It is not a de Polignac number, because 232012201021 - 2³ = 232012201013 is a prime.

It is a super-2 number, since 2×232012201021² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232012200986 and 232012201004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232012201921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116006100510 + 116006100511.

It is an arithmetic number, because the mean of its divisors is an integer number (116006100511).

Almost surely, 2^232012201021 is an apocalyptic number.

It is an amenable number.

232012201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

232012201021 is an equidigital number, since it uses as much as digits as its factorization.

232012201021 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 16.

Adding to 232012201021 its reverse (120102210232), we get a palindrome (352114411253).

It can be divided in two parts, 23201 and 2201021, that added together give a palindrome (2224222).

The spelling of 232012201021 in words is "two hundred thirty-two billion, twelve million, two hundred one thousand, twenty-one".