1054045430221 has 16 divisors (see below), whose sum is σ = 1268859366400. Its totient is φ = 874323389520.

The previous prime is 1054045430219. The next prime is 1054045430233. The reversal of 1054045430221 is 1220345404501.

It is not a de Polignac number, because 1054045430221 - 2¹ = 1054045430219 is a prime.

It is a super-2 number, since 2×1054045430221² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054045470221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49554186 + ... + 49575451.

It is an arithmetic number, because the mean of its divisors is an integer number (79303710400).

Almost surely, 2^{1054045430221} is an apocalyptic number.

It is an amenable number.

1054045430221 is a deficient number, since it is larger than the sum of its proper divisors (214813936179).

1054045430221 is an frugal number, since it uses more digits than its factorization.

1054045430221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99129689 (or 99129675 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 1054045430221 in words is "one trillion, fifty-four billion, forty-five million, four hundred thirty thousand, two hundred twenty-one".