355021018229 has 2 divisors, whose sum is σ = 355021018230. Its totient is φ = 355021018228.

The previous prime is 355021018223. The next prime is 355021018237. The reversal of 355021018229 is 922810120553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306533859025 + 48487159204 = 553655^2 + 220198^2 .

It is a cyclic number.

It is not a de Polignac number, because 355021018229 - 2¹² = 355021014133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 355021018192 and 355021018201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355021018223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177510509114 + 177510509115.

It is an arithmetic number, because the mean of its divisors is an integer number (177510509115).

Almost surely, 2^355021018229 is an apocalyptic number.

It is an amenable number.

355021018229 is a deficient number, since it is larger than the sum of its proper divisors (1).

355021018229 is an equidigital number, since it uses as much as digits as its factorization.

355021018229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 355021018229 in words is "three hundred fifty-five billion, twenty-one million, eighteen thousand, two hundred twenty-nine".