356221470100 has 72 divisors (see below), whose sum is σ = 795895509080. Its totient is φ = 138287761920.

The previous prime is 356221470083. The next prime is 356221470131. The reversal of 356221470100 is 1074122653.

It can be written as a sum of positive squares in 12 ways, for example, as 6046306564 + 350175163536 = 77758^2 + 591756^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1347646 + ... + 1590154.

Almost surely, 2^356221470100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 356221470100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397947754540).

356221470100 is an abundant number, since it is smaller than the sum of its proper divisors (439674038980).

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

356221470100 is a wasteful number, since it uses less digits than its factorization.

356221470100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242957 (or 242950 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 356221470100 its reverse (1074122653), we get a palindrome (357295592753).

The spelling of 356221470100 in words is "three hundred fifty-six billion, two hundred twenty-one million, four hundred seventy thousand, one hundred".