202220444440 has 64 divisors (see below), whose sum is σ = 528808953600. Its totient is φ = 68157587328.

The previous prime is 202220444407. The next prime is 202220444443. The reversal of 202220444440 is 44444022202.

It is a super-2 number, since 2×202220444440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 202220444399 and 202220444408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220444443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6103954 + ... + 6136993.

It is an arithmetic number, because the mean of its divisors is an integer number (8262639900).

Almost surely, 2^202220444440 is an apocalyptic number.

202220444440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202220444440 is an abundant number, since it is smaller than the sum of its proper divisors (326588509160).

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

202220444440 is a wasteful number, since it uses less digits than its factorization.

202220444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241024 (or 12241020 counting only the distinct ones).

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

Adding to 202220444440 its reverse (44444022202), we get a palindrome (246664466642).

The spelling of 202220444440 in words is "two hundred two billion, two hundred twenty million, four hundred forty-four thousand, four hundred forty".