202220042240 has 96 divisors (see below), whose sum is σ = 496494638640. Its totient is φ = 79006728192.

The previous prime is 202220042231. The next prime is 202220042257. The reversal of 202220042240 is 42240022202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210692 + ... + 669948.

Almost surely, 2^202220042240 is an apocalyptic number.

202220042240 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 202220042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248247319320).

202220042240 is an abundant number, since it is smaller than the sum of its proper divisors (294274596400).

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

202220042240 is an equidigital number, since it uses as much as digits as its factorization.

202220042240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459327 (or 459307 counting only the distinct ones).

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

Adding to 202220042240 its reverse (42240022202), we get a palindrome (244460064442).

The spelling of 202220042240 in words is "two hundred two billion, two hundred twenty million, forty-two thousand, two hundred forty".