221434132403 has 8 divisors (see below), whose sum is σ = 241678964736. Its totient is φ = 201208376200.

The previous prime is 221434132369. The next prime is 221434132421. The reversal of 221434132403 is 304231434122.

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 221434132403 - 2⁸ = 221434132147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221434132303) 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, 4744751 + ... + 4791192.

It is an arithmetic number, because the mean of its divisors is an integer number (30209870592).

Almost surely, 2^221434132403 is an apocalyptic number.

221434132403 is a deficient number, since it is larger than the sum of its proper divisors (20244832333).

221434132403 is a wasteful number, since it uses less digits than its factorization.

221434132403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538065.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 221434132403 its reverse (304231434122), we get a palindrome (525665566525).

The spelling of 221434132403 in words is "two hundred twenty-one billion, four hundred thirty-four million, one hundred thirty-two thousand, four hundred three".