621122622 has 16 divisors (see below), whose sum is σ = 1255053072. Its totient is φ = 204906240.

The previous prime is 621122611. The next prime is 621122627. The reversal of 621122622 is 226221126.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 621122592 and 621122601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621122627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533029 + ... + 534192.

It is an arithmetic number, because the mean of its divisors is an integer number (78440817).

Almost surely, 2^621122622 is an apocalyptic number.

621122622 is an abundant number, since it is smaller than the sum of its proper divisors (633930450).

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

621122622 is a wasteful number, since it uses less digits than its factorization.

621122622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067323.

The product of its digits is 1152, while the sum is 24.

The square root of 621122622 is about 24922.3317929924. The cubic root of 621122622 is about 853.2162449549.

Adding to 621122622 its reverse (226221126), we get a palindrome (847343748).

The spelling of 621122622 in words is "six hundred twenty-one million, one hundred twenty-two thousand, six hundred twenty-two".