22513005606020 has 24 divisors (see below), whose sum is σ = 47291262139800. Its totient is φ = 9002545029632.

The previous prime is 22513005606017. The next prime is 22513005606073. The reversal of 22513005606020 is 2060650031522.

It can be written as a sum of positive squares in 4 ways, for example, as 15294294067264 + 7218711538756 = 3910792^2 + 2686766^2 .

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, 166006325 + ... + 166141884.

It is an arithmetic number, because the mean of its divisors is an integer number (1970469255825).

Almost surely, 2^{22513005606020} is an apocalyptic number.

22513005606020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22513005606020 is an abundant number, since it is smaller than the sum of its proper divisors (24778256533780).

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

22513005606020 is a wasteful number, since it uses less digits than its factorization.

22513005606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332151607 (or 332151605 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 22513005606020 its reverse (2060650031522), we get a palindrome (24573655637542).

The spelling of 22513005606020 in words is "twenty-two trillion, five hundred thirteen billion, five million, six hundred six thousand, twenty".