20432221334 has 64 divisors (see below), whose sum is σ = 37328670720. Its totient is φ = 8203023360.

The previous prime is 20432221333. The next prime is 20432221357. The reversal of 20432221334 is 43312223402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432221331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2103962 + ... + 2113650.

It is an arithmetic number, because the mean of its divisors is an integer number (583260480).

Almost surely, 2^20432221334 is an apocalyptic number.

20432221334 is a deficient number, since it is larger than the sum of its proper divisors (16896449386).

20432221334 is a wasteful number, since it uses less digits than its factorization.

20432221334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20432221334 its reverse (43312223402), we get a palindrome (63744444736).

The spelling of 20432221334 in words is "twenty billion, four hundred thirty-two million, two hundred twenty-one thousand, three hundred thirty-four".