221454052253 has 8 divisors (see below), whose sum is σ = 253605808320. Its totient is φ = 189431161920.

The previous prime is 221454052249. The next prime is 221454052283. The reversal of 221454052253 is 352250454122.

It is a happy number.

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

It is not a de Polignac number, because 221454052253 - 2² = 221454052249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221454052283) 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, 32212748 + ... + 32219621.

It is an arithmetic number, because the mean of its divisors is an integer number (31700726040).

Almost surely, 2^221454052253 is an apocalyptic number.

It is an amenable number.

221454052253 is a deficient number, since it is larger than the sum of its proper divisors (32151756067).

221454052253 is an equidigital number, since it uses as much as digits as its factorization.

221454052253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64432867.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 221454052253 in words is "two hundred twenty-one billion, four hundred fifty-four million, fifty-two thousand, two hundred fifty-three".