621122852 has 12 divisors (see below), whose sum is σ = 1242245760. Its totient is φ = 266195496.

The previous prime is 621122833. The next prime is 621122869. The reversal of 621122852 is 258221126.

621122852 is an admirable number.

It is a super-2 number, since 2×621122852² = 771587194553227808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11091452 + ... + 11091507.

It is an arithmetic number, because the mean of its divisors is an integer number (103520480).

Almost surely, 2^621122852 is an apocalyptic number.

It is an amenable number.

621122852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

621122852 is a wasteful number, since it uses less digits than its factorization.

621122852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22182970 (or 22182968 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 621122852 is about 24922.3364073275. The cubic root of 621122852 is about 853.2163502695.

Adding to 621122852 its reverse (258221126), we get a palindrome (879343978).

The spelling of 621122852 in words is "six hundred twenty-one million, one hundred twenty-two thousand, eight hundred fifty-two".