1453253002221 has 32 divisors (see below), whose sum is σ = 2035199029248. Its totient is φ = 921468018240.

The previous prime is 1453253002219. The next prime is 1453253002231. The reversal of 1453253002221 is 1222003523541.

It is not a de Polignac number, because 1453253002221 - 2¹ = 1453253002219 is a prime.

It is a super-2 number, since 2×1453253002221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453253002211) 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 31 ways as a sum of consecutive naturals, for example, 586056 + ... + 1802766.

It is an arithmetic number, because the mean of its divisors is an integer number (63599969664).

Almost surely, 2^{1453253002221} is an apocalyptic number.

It is an amenable number.

1453253002221 is a deficient number, since it is larger than the sum of its proper divisors (581946027027).

1453253002221 is a wasteful number, since it uses less digits than its factorization.

1453253002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217001.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1453253002221 its reverse (1222003523541), we get a palindrome (2675256525762).

The spelling of 1453253002221 in words is "one trillion, four hundred fifty-three billion, two hundred fifty-three million, two thousand, two hundred twenty-one".