22201222220220 has 24 divisors (see below), whose sum is σ = 62163422216784. Its totient is φ = 5920325925376.

The previous prime is 22201222220179. The next prime is 22201222220249. The reversal of 22201222220220 is 2202222210222.

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, 185010185109 + ... + 185010185228.

It is an arithmetic number, because the mean of its divisors is an integer number (2590142592366).

Almost surely, 2^{22201222220220} is an apocalyptic number.

22201222220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201222220220 is an abundant number, since it is smaller than the sum of its proper divisors (39962199996564).

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

22201222220220 is a wasteful number, since it uses less digits than its factorization.

22201222220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370020370349 (or 370020370347 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22201222220220 its reverse (2202222210222), we get a palindrome (24403444430442).

The spelling of 22201222220220 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty".