22243550420 has 384 divisors, whose sum is σ = 64249113600. Its totient is φ = 6270566400.

The previous prime is 22243550419. The next prime is 22243550429. The reversal of 22243550420 is 2405534222.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243550429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41115350 + ... + 41115890.

It is an arithmetic number, because the mean of its divisors is an integer number (167315400).

Almost surely, 2^22243550420 is an apocalyptic number.

22243550420 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 22243550420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32124556800).

22243550420 is an abundant number, since it is smaller than the sum of its proper divisors (42005563180).

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

22243550420 is a wasteful number, since it uses less digits than its factorization.

22243550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The spelling of 22243550420 in words is "twenty-two billion, two hundred forty-three million, five hundred fifty thousand, four hundred twenty".