1201110000220 has 96 divisors (see below), whose sum is σ = 2774079524160. Its totient is φ = 434161305600.

The previous prime is 1201110000161. The next prime is 1201110000289. The reversal of 1201110000220 is 220000111021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1201110000197 and 1201110000206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2080179 + ... + 2594101.

It is an arithmetic number, because the mean of its divisors is an integer number (28896661710).

Almost surely, 2^{1201110000220} is an apocalyptic number.

1201110000220 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 1201110000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387039762080).

1201110000220 is an abundant number, since it is smaller than the sum of its proper divisors (1572969523940).

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

1201110000220 is a wasteful number, since it uses less digits than its factorization.

1201110000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514135 (or 514133 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1201110000220 its reverse (220000111021), we get a palindrome (1421110111241).

The spelling of 1201110000220 in words is "one trillion, two hundred one billion, one hundred ten million, two hundred twenty", and thus it is an aban number.