22202222020040 has 128 divisors (see below), whose sum is σ = 52088943456000. Its totient is φ = 8506438886400.

The previous prime is 22202222020039. The next prime is 22202222020057. The reversal of 22202222020040 is 4002022220222.

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 = 22202222019994 and 22202222020021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504333230 + ... + 504377250.

It is an arithmetic number, because the mean of its divisors is an integer number (406944870750).

Almost surely, 2^{22202222020040} is an apocalyptic number.

22202222020040 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 22202222020040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26044471728000).

22202222020040 is an abundant number, since it is smaller than the sum of its proper divisors (29886721435960).

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

22202222020040 is a wasteful number, since it uses less digits than its factorization.

22202222020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47511 (or 47507 counting only the distinct ones).

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

Adding to 22202222020040 its reverse (4002022220222), we get a palindrome (26204244240262).

The spelling of 22202222020040 in words is "twenty-two trillion, two hundred two billion, two hundred twenty-two million, twenty thousand, forty".