20533122004 has 24 divisors (see below), whose sum is σ = 36347270400. Its totient is φ = 10148255040.

The previous prime is 20533121953. The next prime is 20533122007. The reversal of 20533122004 is 40022133502.

It is a super-2 number, since 2×20533122004² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533122007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713867 + ... + 1725805.

It is an arithmetic number, because the mean of its divisors is an integer number (1514469600).

Almost surely, 2^20533122004 is an apocalyptic number.

It is an amenable number.

20533122004 is a deficient number, since it is larger than the sum of its proper divisors (15814148396).

20533122004 is a wasteful number, since it uses less digits than its factorization.

20533122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16863 (or 16861 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20533122004 its reverse (40022133502), we get a palindrome (60555255506).

The spelling of 20533122004 in words is "twenty billion, five hundred thirty-three million, one hundred twenty-two thousand, four".