622221561040 has 40 divisors (see below), whose sum is σ = 1447535351808. Its totient is φ = 248738908800.

The previous prime is 622221561011. The next prime is 622221561067. The reversal of 622221561040 is 40165122226.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 622221560993 and 622221561011.

It is a congruent number.

It is an unprimeable number.

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, 2205436 + ... + 2471515.

Almost surely, 2^622221561040 is an apocalyptic number.

It is an amenable number.

622221561040 is an abundant number, since it is smaller than the sum of its proper divisors (825313790768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622221561040 is a wasteful number, since it uses less digits than its factorization.

622221561040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678627 (or 4678621 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 622221561040 its reverse (40165122226), we get a palindrome (662386683266).

The spelling of 622221561040 in words is "six hundred twenty-two billion, two hundred twenty-one million, five hundred sixty-one thousand, forty".