421504989122 has 16 divisors (see below), whose sum is σ = 734827101120. Its totient is φ = 177583215408.

The previous prime is 421504989107. The next prime is 421504989163. The reversal of 421504989122 is 221989405124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255147473 + ... + 255149124.

It is an arithmetic number, because the mean of its divisors is an integer number (45926693820).

Almost surely, 2^421504989122 is an apocalyptic number.

421504989122 is a deficient number, since it is larger than the sum of its proper divisors (313322111998).

421504989122 is a wasteful number, since it uses less digits than its factorization.

421504989122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510296665.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 421504989122 in words is "four hundred twenty-one billion, five hundred four million, nine hundred eighty-nine thousand, one hundred twenty-two".