202244004020 has 12 divisors (see below), whose sum is σ = 424712408484. Its totient is φ = 80897601600.

The previous prime is 202244004019. The next prime is 202244004037. The reversal of 202244004020 is 20400442202.

It can be written as a sum of positive squares in 2 ways, for example, as 63760290064 + 138483713956 = 252508^2 + 372134^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10112200201 = 202244004020 / (2 + 0 + 2 + 2 + 4 + 4 + 0 + 0 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 202244003983 and 202244004001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5056100081 + ... + 5056100120.

It is an arithmetic number, because the mean of its divisors is an integer number (35392700707).

Almost surely, 2^202244004020 is an apocalyptic number.

202244004020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202244004020 is an abundant number, since it is smaller than the sum of its proper divisors (222468404464).

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

202244004020 is a wasteful number, since it uses less digits than its factorization.

202244004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112200210 (or 10112200208 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 202244004020 its reverse (20400442202), we get a palindrome (222644446222).

The spelling of 202244004020 in words is "two hundred two billion, two hundred forty-four million, four thousand, twenty".