22001111221120 has 32 divisors (see below), whose sum is σ = 52596406514520. Its totient is φ = 8800444488192.

The previous prime is 22001111221109. The next prime is 22001111221121. The reversal of 22001111221120 is 2112211110022.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 22001111221094 and 22001111221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001111221121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17188367502 + ... + 17188368781.

Almost surely, 2^{22001111221120} is an apocalyptic number.

22001111221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001111221120 is an abundant number, since it is smaller than the sum of its proper divisors (30595295293400).

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

22001111221120 is an equidigital number, since it uses as much as digits as its factorization.

22001111221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34376736302 (or 34376736290 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22001111221120 its reverse (2112211110022), we get a palindrome (24113322331142).

The spelling of 22001111221120 in words is "twenty-two trillion, one billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty".