20522001044 has 12 divisors (see below), whose sum is σ = 38026060884. Its totient is φ = 9657412224.

The previous prime is 20522000977. The next prime is 20522001083. The reversal of 20522001044 is 44010022502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10876404100 + 9645596944 = 104290^2 + 98212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150896999 + ... + 150897134.

It is an arithmetic number, because the mean of its divisors is an integer number (3168838407).

Almost surely, 2^20522001044 is an apocalyptic number.

It is an amenable number.

20522001044 is a deficient number, since it is larger than the sum of its proper divisors (17504059840).

20522001044 is a wasteful number, since it uses less digits than its factorization.

20522001044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301794154 (or 301794152 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 20522001044 its reverse (44010022502), we get a palindrome (64532023546).

The spelling of 20522001044 in words is "twenty billion, five hundred twenty-two million, one thousand, forty-four".