22221112101000 has 256 divisors, whose sum is σ = 69474294639360. Its totient is φ = 5913297561600.

The previous prime is 22221112100981. The next prime is 22221112101049. The reversal of 22221112101000 is 10121112222.

It is a super-3 number, since 3×22221112101000³ (a number of 41 digits) contains 333 as substring.

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

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, 6472795284 + ... + 6472798716.

It is an arithmetic number, because the mean of its divisors is an integer number (271383963435).

Almost surely, 2^{22221112101000} is an apocalyptic number.

22221112101000 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 22221112101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34737147319680).

22221112101000 is an abundant number, since it is smaller than the sum of its proper divisors (47253182538360).

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

22221112101000 is a wasteful number, since it uses less digits than its factorization.

22221112101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321 (or 7307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22221112101000 its reverse (10121112222), we get a palindrome (22231233213222).

The spelling of 22221112101000 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, one hundred one thousand".