22040402244220 has 24 divisors (see below), whose sum is σ = 49007482637904. Its totient is φ = 8297563197696.

The previous prime is 22040402244199. The next prime is 22040402244317. The reversal of 22040402244220 is 2244220404022.

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, 32412355902 + ... + 32412356581.

It is an arithmetic number, because the mean of its divisors is an integer number (2041978443246).

Almost surely, 2^{22040402244220} is an apocalyptic number.

22040402244220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22040402244220 is an abundant number, since it is smaller than the sum of its proper divisors (26967080393684).

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

22040402244220 is a wasteful number, since it uses less digits than its factorization.

22040402244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64824712509 (or 64824712507 counting only the distinct ones).

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

Adding to 22040402244220 its reverse (2244220404022), we get a palindrome (24284622648242).

The spelling of 22040402244220 in words is "twenty-two trillion, forty billion, four hundred two million, two hundred forty-four thousand, two hundred twenty".