2221231202329 has 2 divisors, whose sum is σ = 2221231202330. Its totient is φ = 2221231202328.

The previous prime is 2221231202273. The next prime is 2221231202441. The reversal of 2221231202329 is 9232021321222.

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., 1991138299929 + 230092902400 = 1411077^2 + 479680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221231202329 - 2²¹ = 2221229105177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221231202329.

It is not a weakly prime, because it can be changed into another prime (2221231262329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110615601164 + 1110615601165.

It is an arithmetic number, because the mean of its divisors is an integer number (1110615601165).

Almost surely, 2^{2221231202329} is an apocalyptic number.

It is an amenable number.

2221231202329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221231202329 is an equidigital number, since it uses as much as digits as its factorization.

2221231202329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 2221231202329 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, two hundred two thousand, three hundred twenty-nine".