350444221502121 has 12 divisors (see below), whose sum is σ = 535973515238772. Its totient is φ = 219886570354176.

The previous prime is 350444221502113. The next prime is 350444221502131. The reversal of 350444221502121 is 121205122444053.

350444221502121 is a `hidden beast` number, since 3 + 5 + 0 + 4 + 4 + 4 + 2 + 21 + 502 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 264998971306521 + 85445250195600 = 16278789^2 + 9243660^2 .

It is not a de Polignac number, because 350444221502121 - 2³ = 350444221502113 is a prime.

It is a super-2 number, since 2×350444221502121² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (350444221502131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1145242553776 + ... + 1145242554081.

It is an arithmetic number, because the mean of its divisors is an integer number (44664459603231).

Almost surely, 2^{350444221502121} is an apocalyptic number.

It is an amenable number.

350444221502121 is a deficient number, since it is larger than the sum of its proper divisors (185529293736651).

350444221502121 is a wasteful number, since it uses less digits than its factorization.

350444221502121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290485107880 (or 2290485107877 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 350444221502121 its reverse (121205122444053), we get a palindrome (471649343946174).

The spelling of 350444221502121 in words is "three hundred fifty trillion, four hundred forty-four billion, two hundred twenty-one million, five hundred two thousand, one hundred twenty-one".