20228247522 has 54 divisors (see below), whose sum is σ = 50994088353. Its totient is φ = 5778292464.

The previous prime is 20228247469. The next prime is 20228247539. The reversal of 20228247522 is 22574282202.

It can be written as a sum of positive squares in 2 ways, for example, as 15252497001 + 4975750521 = 123501^2 + 70539^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100569.

It is a super-2 number, since 2×20228247522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4221504 + ... + 4226292.

Almost surely, 2^20228247522 is an apocalyptic number.

20228247522 is an abundant number, since it is smaller than the sum of its proper divisors (30765840831).

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

20228247522 is an frugal number, since it uses more digits than its factorization.

20228247522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600 (or 4801 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The spelling of 20228247522 in words is "twenty billion, two hundred twenty-eight million, two hundred forty-seven thousand, five hundred twenty-two".