353322311220121 has 2 divisors, whose sum is σ = 353322311220122. Its totient is φ = 353322311220120.

The previous prime is 353322311220101. The next prime is 353322311220149. The reversal of 353322311220121 is 121022113223353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352025252176896 + 1297059043225 = 18762336^2 + 1138885^2 .

It is a cyclic number.

It is not a de Polignac number, because 353322311220121 - 2⁴⁵ = 318137939131289 is a prime.

It is not a weakly prime, because it can be changed into another prime (353322311220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176661155610060 + 176661155610061.

It is an arithmetic number, because the mean of its divisors is an integer number (176661155610061).

Almost surely, 2^{353322311220121} is an apocalyptic number.

It is an amenable number.

353322311220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

353322311220121 is an equidigital number, since it uses as much as digits as its factorization.

353322311220121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 353322311220121 its reverse (121022113223353), we get a palindrome (474344424443474).

The spelling of 353322311220121 in words is "three hundred fifty-three trillion, three hundred twenty-two billion, three hundred eleven million, two hundred twenty thousand, one hundred twenty-one".