20331022123201 has 2 divisors, whose sum is σ = 20331022123202. Its totient is φ = 20331022123200.

The previous prime is 20331022123187. The next prime is 20331022123213. The reversal of 20331022123201 is 10232122013302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19019193210000 + 1311828913201 = 4361100^2 + 1145351^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331022123201 - 2¹³ = 20331022115009 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331022123301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165511061600 + 10165511061601.

It is an arithmetic number, because the mean of its divisors is an integer number (10165511061601).

Almost surely, 2^{20331022123201} is an apocalyptic number.

It is an amenable number.

20331022123201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331022123201 is an equidigital number, since it uses as much as digits as its factorization.

20331022123201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20331022123201 its reverse (10232122013302), we get a palindrome (30563144136503).

The spelling of 20331022123201 in words is "twenty trillion, three hundred thirty-one billion, twenty-two million, one hundred twenty-three thousand, two hundred one".