422223140332421 has 4 divisors (see below), whose sum is σ = 422227193999244. Its totient is φ = 422219086665600.

The previous prime is 422223140332417. The next prime is 422223140332429. The reversal of 422223140332421 is 124233041322224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93342920479396 + 328880219853025 = 9661414^2 + 18135055^2 .

It is a cyclic number.

It is not a de Polignac number, because 422223140332421 - 2² = 422223140332417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422223140332429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2026677170 + ... + 2026885491.

It is an arithmetic number, because the mean of its divisors is an integer number (105556798499811).

Almost surely, 2^{422223140332421} is an apocalyptic number.

It is an amenable number.

422223140332421 is a deficient number, since it is larger than the sum of its proper divisors (4053666823).

422223140332421 is a wasteful number, since it uses less digits than its factorization.

422223140332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053666822.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 422223140332421 its reverse (124233041322224), we get a palindrome (546456181654645).

The spelling of 422223140332421 in words is "four hundred twenty-two trillion, two hundred twenty-three billion, one hundred forty million, three hundred thirty-two thousand, four hundred twenty-one".