421542634022 has 8 divisors (see below), whose sum is σ = 633144852072. Its totient is φ = 210494350000.

The previous prime is 421542633997. The next prime is 421542634039. The reversal of 421542634022 is 220436245124.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138481604 + ... + 138484647.

It is an arithmetic number, because the mean of its divisors is an integer number (79143106509).

Almost surely, 2^421542634022 is an apocalyptic number.

421542634022 is a deficient number, since it is larger than the sum of its proper divisors (211602218050).

421542634022 is a wasteful number, since it uses less digits than its factorization.

421542634022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276967014.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 421542634022 its reverse (220436245124), we get a palindrome (641978879146).

The spelling of 421542634022 in words is "four hundred twenty-one billion, five hundred forty-two million, six hundred thirty-four thousand, twenty-two".