622221742641 has 8 divisors (see below), whose sum is σ = 834913251904. Its totient is φ = 412172364240.

The previous prime is 622221742631. The next prime is 622221742661. The reversal of 622221742641 is 146247122226.

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

It is not a de Polignac number, because 622221742641 - 2¹⁸ = 622221480497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 622221742641.

It is not an unprimeable number, because it can be changed into a prime (622221742621) 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 7 ways as a sum of consecutive naturals, for example, 660532165 + ... + 660533106.

It is an arithmetic number, because the mean of its divisors is an integer number (104364156488).

Almost surely, 2^622221742641 is an apocalyptic number.

It is an amenable number.

622221742641 is a deficient number, since it is larger than the sum of its proper divisors (212691509263).

622221742641 is a wasteful number, since it uses less digits than its factorization.

622221742641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321065431.

The product of its digits is 129024, while the sum is 39.

Adding to 622221742641 its reverse (146247122226), we get a palindrome (768468864867).

The spelling of 622221742641 in words is "six hundred twenty-two billion, two hundred twenty-one million, seven hundred forty-two thousand, six hundred forty-one".