2254542403221 has 12 divisors (see below), whose sum is σ = 3257043005580. Its totient is φ = 1502805919680.

The previous prime is 2254542403153. The next prime is 2254542403229. The reversal of 2254542403221 is 1223042454522.

2254542403221 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 5 + 424 + 0 + 3 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1768195170225 + 486347232996 = 1329735^2 + 697386^2 .

It is not a de Polignac number, because 2254542403221 - 2¹⁰ = 2254542402197 is a prime.

It is a super-2 number, since 2×2254542403221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2254542403229) 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, 18464866 + ... + 18586563.

It is an arithmetic number, because the mean of its divisors is an integer number (271420250465).

Almost surely, 2^{2254542403221} is an apocalyptic number.

It is an amenable number.

2254542403221 is a deficient number, since it is larger than the sum of its proper divisors (1002500602359).

2254542403221 is a wasteful number, since it uses less digits than its factorization.

2254542403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37058196 (or 37058193 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 2254542403221 its reverse (1223042454522), we get a palindrome (3477584857743).

The spelling of 2254542403221 in words is "two trillion, two hundred fifty-four billion, five hundred forty-two million, four hundred three thousand, two hundred twenty-one".