20227315300 has 72 divisors (see below), whose sum is σ = 44405361000. Its totient is φ = 7996907520.

The previous prime is 20227315291. The next prime is 20227315301. The reversal of 20227315300 is 351372202.

It can be written as a sum of positive squares in 12 ways, for example, as 1259966016 + 18967349284 = 35496^2 + 137722^2 .

It is a super-2 number, since 2×20227315300² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20227315301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4892034 + ... + 4896166.

It is an arithmetic number, because the mean of its divisors is an integer number (616741125).

Almost surely, 2^20227315300 is an apocalyptic number.

20227315300 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 20227315300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22202680500).

20227315300 is an abundant number, since it is smaller than the sum of its proper divisors (24178045700).

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

20227315300 is a wasteful number, since it uses less digits than its factorization.

20227315300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705 (or 4698 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

Adding to 20227315300 its reverse (351372202), we get a palindrome (20578687502).

The spelling of 20227315300 in words is "twenty billion, two hundred twenty-seven million, three hundred fifteen thousand, three hundred".