22221423312000 has 512 divisors, whose sum is σ = 80657800704000. Its totient is φ = 5367098880000.

The previous prime is 22221423311849. The next prime is 22221423312031. The reversal of 22221423312000 is 21332412222.

It is a super-2 number, since 2×22221423312000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143010351 + ... + 143165649.

It is an arithmetic number, because the mean of its divisors is an integer number (157534767000).

Almost surely, 2^{22221423312000} is an apocalyptic number.

22221423312000 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 22221423312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40328900352000).

22221423312000 is an abundant number, since it is smaller than the sum of its proper divisors (58436377392000).

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

22221423312000 is a wasteful number, since it uses less digits than its factorization.

22221423312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155613 (or 155591 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22221423312000 its reverse (21332412222), we get a palindrome (22242755724222).

The spelling of 22221423312000 in words is "twenty-two trillion, two hundred twenty-one billion, four hundred twenty-three million, three hundred twelve thousand".