235421221454 has 4 divisors (see below), whose sum is σ = 353131832184. Its totient is φ = 117710610726.

The previous prime is 235421221439. The next prime is 235421221459. The reversal of 235421221454 is 454122124532.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235421221459) 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 as a sum of consecutive naturals, namely, 58855305362 + ... + 58855305365.

It is an arithmetic number, because the mean of its divisors is an integer number (88282958046).

Almost surely, 2^235421221454 is an apocalyptic number.

235421221454 is a deficient number, since it is larger than the sum of its proper divisors (117710610730).

235421221454 is a wasteful number, since it uses less digits than its factorization.

235421221454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117710610729.

The product of its digits is 76800, while the sum is 35.

Adding to 235421221454 its reverse (454122124532), we get a palindrome (689543345986).

The spelling of 235421221454 in words is "two hundred thirty-five billion, four hundred twenty-one million, two hundred twenty-one thousand, four hundred fifty-four".