221225001453 has 12 divisors (see below), whose sum is σ = 319625616960. Its totient is φ = 147447153096.

The previous prime is 221225001427. The next prime is 221225001467. The reversal of 221225001453 is 354100522122.

221225001453 is a `hidden beast` number, since 2 + 2 + 12 + 2 + 500 + 145 + 3 = 666.

It is not a de Polignac number, because 221225001453 - 2¹³ = 221224993261 is a prime.

It is a super-2 number, since 2×221225001453² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221225001493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2976351 + ... + 3049772.

It is an arithmetic number, because the mean of its divisors is an integer number (26635468080).

Almost surely, 2^221225001453 is an apocalyptic number.

It is an amenable number.

221225001453 is a deficient number, since it is larger than the sum of its proper divisors (98400615507).

221225001453 is a wasteful number, since it uses less digits than its factorization.

221225001453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030208 (or 6030205 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 221225001453 its reverse (354100522122), we get a palindrome (575325523575).

The spelling of 221225001453 in words is "two hundred twenty-one billion, two hundred twenty-five million, one thousand, four hundred fifty-three".