11112201022220 has 192 divisors, whose sum is σ = 26279286243840. Its totient is φ = 3922214400000.

The previous prime is 11112201022187. The next prime is 11112201022289. The reversal of 11112201022220 is 2222010221111.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254547395 + ... + 254591045.

It is an arithmetic number, because the mean of its divisors is an integer number (136871282520).

Almost surely, 2^{11112201022220} is an apocalyptic number.

11112201022220 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 11112201022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13139643121920).

11112201022220 is an abundant number, since it is smaller than the sum of its proper divisors (15167085221620).

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

11112201022220 is a wasteful number, since it uses less digits than its factorization.

11112201022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44104 (or 44102 counting only the distinct ones).

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

Adding to 11112201022220 its reverse (2222010221111), we get a palindrome (13334211243331).

The spelling of 11112201022220 in words is "eleven trillion, one hundred twelve billion, two hundred one million, twenty-two thousand, two hundred twenty".