20112305212522 has 16 divisors (see below), whose sum is σ = 30456967480200. Its totient is φ = 9960365105152.

The previous prime is 20112305212511. The next prime is 20112305212543. The reversal of 20112305212522 is 22521250321102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18314128809001 + 1798176403521 = 4279501^2 + 1340961^2 .

It is a super-2 number, since 2×20112305212522² (a number of 27 digits) contains 22 as substring.

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, 95491063 + ... + 95701450.

Almost surely, 2^{20112305212522} is an apocalyptic number.

20112305212522 is a deficient number, since it is larger than the sum of its proper divisors (10344662267678).

20112305212522 is a wasteful number, since it uses less digits than its factorization.

20112305212522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191193017.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 20112305212522 its reverse (22521250321102), we get a palindrome (42633555533624).

The spelling of 20112305212522 in words is "twenty trillion, one hundred twelve billion, three hundred five million, two hundred twelve thousand, five hundred twenty-two".