421032221210422 has 4 divisors (see below), whose sum is σ = 631548331815636. Its totient is φ = 210516110605210.

The previous prime is 421032221210369. The next prime is 421032221210429. The reversal of 421032221210422 is 224012122230124.

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 (421032221210429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105258055302604 + ... + 105258055302607.

It is an arithmetic number, because the mean of its divisors is an integer number (157887082953909).

Almost surely, 2^{421032221210422} is an apocalyptic number.

421032221210422 is a deficient number, since it is larger than the sum of its proper divisors (210516110605214).

421032221210422 is a wasteful number, since it uses less digits than its factorization.

421032221210422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210516110605213.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 421032221210422 its reverse (224012122230124), we get a palindrome (645044343440546).

The spelling of 421032221210422 in words is "four hundred twenty-one trillion, thirty-two billion, two hundred twenty-one million, two hundred ten thousand, four hundred twenty-two".