331201220022109 has 2 divisors, whose sum is σ = 331201220022110. Its totient is φ = 331201220022108.

The previous prime is 331201220022089. The next prime is 331201220022149. The reversal of 331201220022109 is 901220022102133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286645554972100 + 44555665050009 = 16930610^2 + 6675003^2 .

It is a cyclic number.

It is not a de Polignac number, because 331201220022109 - 2⁷ = 331201220021981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331201220022149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165600610011054 + 165600610011055.

It is an arithmetic number, because the mean of its divisors is an integer number (165600610011055).

Almost surely, 2^{331201220022109} is an apocalyptic number.

It is an amenable number.

331201220022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

331201220022109 is an equidigital number, since it uses as much as digits as its factorization.

331201220022109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 331201220022109 in words is "three hundred thirty-one trillion, two hundred one billion, two hundred twenty million, twenty-two thousand, one hundred nine".