11012122201220 has 144 divisors (see below), whose sum is σ = 26990008859520. Its totient is φ = 3774110156544.

The previous prime is 11012122201181. The next prime is 11012122201229. The reversal of 11012122201220 is 2210222121011.

It is a super-3 number, since 3×11012122201220³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11012122201229) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1189594832 + ... + 1189604088.

It is an arithmetic number, because the mean of its divisors is an integer number (187430617080).

Almost surely, 2^{11012122201220} is an apocalyptic number.

11012122201220 is a gapful number since it is divisible by the number (10) 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 11012122201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13495004429760).

11012122201220 is an abundant number, since it is smaller than the sum of its proper divisors (15977886658300).

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

11012122201220 is an frugal number, since it uses more digits than its factorization.

11012122201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840 (or 12810 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11012122201220 its reverse (2210222121011), we get a palindrome (13222344322231).

The spelling of 11012122201220 in words is "eleven trillion, twelve billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty".