20522213511443 has 24 divisors (see below), whose sum is σ = 24381690986304. Its totient is φ = 17215511040000.

The previous prime is 20522213511421. The next prime is 20522213511461. The reversal of 20522213511443 is 34411531222502.

It is not a de Polignac number, because 20522213511443 - 2⁸ = 20522213511187 is a prime.

It is a super-2 number, since 2×20522213511443² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20522213511743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61741193 + ... + 62072693.

It is an arithmetic number, because the mean of its divisors is an integer number (1015903791096).

Almost surely, 2^{20522213511443} is an apocalyptic number.

20522213511443 is a deficient number, since it is larger than the sum of its proper divisors (3859477474861).

20522213511443 is a wasteful number, since it uses less digits than its factorization.

20522213511443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358443 (or 358436 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 20522213511443 its reverse (34411531222502), we get a palindrome (54933744733945).

The spelling of 20522213511443 in words is "twenty trillion, five hundred twenty-two billion, two hundred thirteen million, five hundred eleven thousand, four hundred forty-three".