12232222001 has 2 divisors, whose sum is σ = 12232222002. Its totient is φ = 12232222000.

The previous prime is 12232221979. The next prime is 12232222049. The reversal of 12232222001 is 10022223221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12223513600 + 8708401 = 110560^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232222001 - 2¹⁴ = 12232205617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12232222061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116111000 + 6116111001.

It is an arithmetic number, because the mean of its divisors is an integer number (6116111001).

Almost surely, 2^12232222001 is an apocalyptic number.

It is an amenable number.

12232222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232222001 is an equidigital number, since it uses as much as digits as its factorization.

12232222001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12232222001 its reverse (10022223221), we get a palindrome (22254445222).

The spelling of 12232222001 in words is "twelve billion, two hundred thirty-two million, two hundred twenty-two thousand, one".