350021224325520 has 720 divisors, whose sum is σ = 1318062445854336. Its totient is φ = 83163314995200.

The previous prime is 350021224325519. The next prime is 350021224325651. The reversal of 350021224325520 is 25523422120053.

It is a happy number.

350021224325520 is a `hidden beast` number, since 3 + 5 + 0 + 0 + 2 + 122 + 4 + 3 + 2 + 5 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 870214855 + ... + 870616985.

Almost surely, 2^{350021224325520} is an apocalyptic number.

350021224325520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 350021224325520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659031222927168).

350021224325520 is an abundant number, since it is smaller than the sum of its proper divisors (968041221528816).

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

350021224325520 is a wasteful number, since it uses less digits than its factorization.

350021224325520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402372 (or 402352 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 350021224325520 its reverse (25523422120053), we get a palindrome (375544646445573).

The spelling of 350021224325520 in words is "three hundred fifty trillion, twenty-one billion, two hundred twenty-four million, three hundred twenty-five thousand, five hundred twenty".