20302221332 has 12 divisors (see below), whose sum is σ = 36284821440. Its totient is φ = 9935129496.

The previous prime is 20302221323. The next prime is 20302221337. The reversal of 20302221332 is 23312220302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302221337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53995082 + ... + 53995457.

It is an arithmetic number, because the mean of its divisors is an integer number (3023735120).

Almost surely, 2^20302221332 is an apocalyptic number.

It is an amenable number.

20302221332 is a deficient number, since it is larger than the sum of its proper divisors (15982600108).

20302221332 is a wasteful number, since it uses less digits than its factorization.

20302221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107990590 (or 107990588 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20302221332 its reverse (23312220302), we get a palindrome (43614441634).

The spelling of 20302221332 in words is "twenty billion, three hundred two million, two hundred twenty-one thousand, three hundred thirty-two".