22010404420 has 24 divisors (see below), whose sum is σ = 46630896984. Its totient is φ = 8726247936.

The previous prime is 22010404411. The next prime is 22010404421. The reversal of 22010404420 is 2440401022.

It can be written as a sum of positive squares in 4 ways, for example, as 920394244 + 21090010176 = 30338^2 + 145224^2 .

It is not an unprimeable number, because it can be changed into a prime (22010404421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4867299 + ... + 4871818.

It is an arithmetic number, because the mean of its divisors is an integer number (1942954041).

Almost surely, 2^22010404420 is an apocalyptic number.

22010404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010404420 is an abundant number, since it is smaller than the sum of its proper divisors (24620492564).

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

22010404420 is a wasteful number, since it uses less digits than its factorization.

22010404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739239 (or 9739237 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22010404420 its reverse (2440401022), we get a palindrome (24450805442).

The spelling of 22010404420 in words is "twenty-two billion, ten million, four hundred four thousand, four hundred twenty".