22201001012220 has 24 divisors (see below), whose sum is σ = 62162802834384. Its totient is φ = 5920266936576.

The previous prime is 22201001012219. The next prime is 22201001012227. The reversal of 22201001012220 is 2221010010222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22201001012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201001012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185008341709 + ... + 185008341828.

It is an arithmetic number, because the mean of its divisors is an integer number (2590116784766).

Almost surely, 2^{22201001012220} is an apocalyptic number.

22201001012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201001012220 is an abundant number, since it is smaller than the sum of its proper divisors (39961801822164).

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

22201001012220 is a wasteful number, since it uses less digits than its factorization.

22201001012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370016683549 (or 370016683547 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22201001012220 its reverse (2221010010222), we get a palindrome (24422011022442).

The spelling of 22201001012220 in words is "twenty-two trillion, two hundred one billion, one million, twelve thousand, two hundred twenty".