421222632530 has 16 divisors (see below), whose sum is σ = 866515129920. Its totient is φ = 144419188272.

The previous prime is 421222632491. The next prime is 421222632547. The reversal of 421222632530 is 35236222124.

It is a Curzon number.

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, 3008733020 + ... + 3008733159.

It is an arithmetic number, because the mean of its divisors is an integer number (54157195620).

Almost surely, 2^421222632530 is an apocalyptic number.

421222632530 is an abundant number, since it is smaller than the sum of its proper divisors (445292497390).

421222632530 is a wasteful number, since it uses less digits than its factorization.

421222632530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017466193.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 421222632530 its reverse (35236222124), we get a palindrome (456458854654).

The spelling of 421222632530 in words is "four hundred twenty-one billion, two hundred twenty-two million, six hundred thirty-two thousand, five hundred thirty".