202222444420 has 24 divisors (see below), whose sum is σ = 428871762648. Its totient is φ = 80088096000.

The previous prime is 202222444343. The next prime is 202222444421. The reversal of 202222444420 is 24444222202.

It can be written as a sum of positive squares in 4 ways, for example, as 73566797824 + 128655646596 = 271232^2 + 358686^2 .

It is not an unprimeable number, because it can be changed into a prime (202222444421) 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, 50053041 + ... + 50057080.

It is an arithmetic number, because the mean of its divisors is an integer number (17869656777).

Almost surely, 2^202222444420 is an apocalyptic number.

202222444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202222444420 is an abundant number, since it is smaller than the sum of its proper divisors (226649318228).

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

202222444420 is a wasteful number, since it uses less digits than its factorization.

202222444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100110231 (or 100110229 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 202222444420 its reverse (24444222202), we get a palindrome (226666666622).

It can be divided in two parts, 20222 and 2444420, that added together give a palindrome (2464642).

The spelling of 202222444420 in words is "two hundred two billion, two hundred twenty-two million, four hundred forty-four thousand, four hundred twenty".