22011121111220 has 96 divisors (see below), whose sum is σ = 46453231883520. Its totient is φ = 8760794296320.

The previous prime is 22011121111201. The next prime is 22011121111223. The reversal of 22011121111220 is 2211112111022.

It is a super-5 number, since 5×22011121111220⁵ (a number of 68 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011121111223) 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 31 ways as a sum of consecutive naturals, for example, 11122344191 + ... + 11122346169.

It is an arithmetic number, because the mean of its divisors is an integer number (483887832120).

Almost surely, 2^{22011121111220} is an apocalyptic number.

22011121111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011121111220 is an abundant number, since it is smaller than the sum of its proper divisors (24442110772300).

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

22011121111220 is a wasteful number, since it uses less digits than its factorization.

22011121111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4903 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22011121111220 its reverse (2211112111022), we get a palindrome (24222233222242).

The spelling of 22011121111220 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twenty".