200344221020 has 24 divisors (see below), whose sum is σ = 421869263424. Its totient is φ = 79919326656.

The previous prime is 200344221019. The next prime is 200344221029. The reversal of 200344221020 is 20122443002.

It is a super-2 number, since 2×200344221020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 200344220983 and 200344221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200344221029) 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, 13640087 + ... + 13654766.

It is an arithmetic number, because the mean of its divisors is an integer number (17577885976).

Almost surely, 2^200344221020 is an apocalyptic number.

200344221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200344221020 is an abundant number, since it is smaller than the sum of its proper divisors (221525042404).

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

200344221020 is a wasteful number, since it uses less digits than its factorization.

200344221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27295229 (or 27295227 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 200344221020 its reverse (20122443002), we get a palindrome (220466664022).

The spelling of 200344221020 in words is "two hundred billion, three hundred forty-four million, two hundred twenty-one thousand, twenty".