5450221302121 has 16 divisors (see below), whose sum is σ = 5795452454400. Its totient is φ = 5117016124800.

The previous prime is 5450221302109. The next prime is 5450221302151. The reversal of 5450221302121 is 1212031220545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5450221302121 - 2⁵ = 5450221302089 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 5450221302121.

It is not an unprimeable number, because it can be changed into a prime (5450221302151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11750526 + ... + 12205543.

It is an arithmetic number, because the mean of its divisors is an integer number (362215778400).

Almost surely, 2^{5450221302121} is an apocalyptic number.

It is an amenable number.

5450221302121 is a deficient number, since it is larger than the sum of its proper divisors (345231152279).

5450221302121 is a wasteful number, since it uses less digits than its factorization.

5450221302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23956320.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 5450221302121 its reverse (1212031220545), we get a palindrome (6662252522666).

The spelling of 5450221302121 in words is "five trillion, four hundred fifty billion, two hundred twenty-one million, three hundred two thousand, one hundred twenty-one".