355442421220422 has 32 divisors (see below), whose sum is σ = 713839746305664. Its totient is φ = 117988330224000.

The previous prime is 355442421220391. The next prime is 355442421220427. The reversal of 355442421220422 is 224022124244553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355442421220427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217106797 + ... + 218737847.

It is an arithmetic number, because the mean of its divisors is an integer number (22307492072052).

Almost surely, 2^{355442421220422} is an apocalyptic number.

355442421220422 is an abundant number, since it is smaller than the sum of its proper divisors (358397325085242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

355442421220422 is a wasteful number, since it uses less digits than its factorization.

355442421220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782004.

The product of its (nonzero) digits is 1228800, while the sum is 42.

Adding to 355442421220422 its reverse (224022124244553), we get a palindrome (579464545464975).

The spelling of 355442421220422 in words is "three hundred fifty-five trillion, four hundred forty-two billion, four hundred twenty-one million, two hundred twenty thousand, four hundred twenty-two".