4350124301221 has 4 divisors (see below), whose sum is σ = 4500128587500. Its totient is φ = 4200120014944.

The previous prime is 4350124301137. The next prime is 4350124301239. The reversal of 4350124301221 is 1221034210534.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1759588985025 + 2590535316196 = 1326495^2 + 1609514^2 .

It is a cyclic number.

It is not a de Polignac number, because 4350124301221 - 2⁷ = 4350124301093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4350124301221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4350124301261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75002143096 + ... + 75002143153.

It is an arithmetic number, because the mean of its divisors is an integer number (1125032146875).

Almost surely, 2^{4350124301221} is an apocalyptic number.

It is an amenable number.

4350124301221 is a deficient number, since it is larger than the sum of its proper divisors (150004286279).

4350124301221 is a wasteful number, since it uses less digits than its factorization.

4350124301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150004286278.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 4350124301221 its reverse (1221034210534), we get a palindrome (5571158511755).

The spelling of 4350124301221 in words is "four trillion, three hundred fifty billion, one hundred twenty-four million, three hundred one thousand, two hundred twenty-one".