20322221300 has 72 divisors (see below), whose sum is σ = 44513650944. Its totient is φ = 8052819840.

The previous prime is 20322221233. The next prime is 20322221317. The reversal of 20322221300 is 312222302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5760137 + ... + 5763663.

It is an arithmetic number, because the mean of its divisors is an integer number (618245152).

Almost surely, 2^20322221300 is an apocalyptic number.

20322221300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20322221300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22256825472).

20322221300 is an abundant number, since it is smaller than the sum of its proper divisors (24191429644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20322221300 is a wasteful number, since it uses less digits than its factorization.

20322221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20322221300 its reverse (312222302), we get a palindrome (20634443602).

The spelling of 20322221300 in words is "twenty billion, three hundred twenty-two million, two hundred twenty-one thousand, three hundred".