11110221012220 has 48 divisors (see below), whose sum is σ = 25453060466400. Its totient is φ = 4039992408320.

The previous prime is 11110221012197. The next prime is 11110221012221. The reversal of 11110221012220 is 2221012201111.

It is a junction number, because it is equal to n+sod(n) for n = 11110221012194 and 11110221012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110221012221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10040646 + ... + 11092114.

It is an arithmetic number, because the mean of its divisors is an integer number (530272093050).

Almost surely, 2^{11110221012220} is an apocalyptic number.

11110221012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11110221012220 is an abundant number, since it is smaller than the sum of its proper divisors (14342839454180).

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

11110221012220 is a wasteful number, since it uses less digits than its factorization.

11110221012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099518 (or 1099516 counting only the distinct ones).

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

Adding to 11110221012220 its reverse (2221012201111), we get a palindrome (13331233213331).

The spelling of 11110221012220 in words is "eleven trillion, one hundred ten billion, two hundred twenty-one million, twelve thousand, two hundred twenty".