22541229820 has 24 divisors (see below), whose sum is σ = 47404139328. Its totient is φ = 9003624000.

The previous prime is 22541229811. The next prime is 22541229853. The reversal of 22541229820 is 2892214522.

It is a self number, because there is not a number n which added to its sum of digits gives 22541229820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789876 + ... + 817915.

It is an arithmetic number, because the mean of its divisors is an integer number (1975172472).

Almost surely, 2^22541229820 is an apocalyptic number.

22541229820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22541229820 is an abundant number, since it is smaller than the sum of its proper divisors (24862909508).

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

22541229820 is a wasteful number, since it uses less digits than its factorization.

22541229820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608501 (or 1608499 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 22541229820 in words is "twenty-two billion, five hundred forty-one million, two hundred twenty-nine thousand, eight hundred twenty".