221451132353023 has 8 divisors (see below), whose sum is σ = 221595898608288. Its totient is φ = 221306375363424.

The previous prime is 221451132352997. The next prime is 221451132353039. The reversal of 221451132353023 is 320353231154122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221451132353023 - 2²⁹ = 221450595482111 is a prime.

It is a super-2 number, since 2×221451132353023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221451132353723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45826390 + ... + 50427772.

It is an arithmetic number, because the mean of its divisors is an integer number (27699487326036).

Almost surely, 2^{221451132353023} is an apocalyptic number.

221451132353023 is a deficient number, since it is larger than the sum of its proper divisors (144766255265).

221451132353023 is a wasteful number, since it uses less digits than its factorization.

221451132353023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632833.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 221451132353023 in words is "two hundred twenty-one trillion, four hundred fifty-one billion, one hundred thirty-two million, three hundred fifty-three thousand, twenty-three".