1122203103012 has 144 divisors (see below), whose sum is σ = 3040766492400. Its totient is φ = 347717836800.

The previous prime is 1122203102959. The next prime is 1122203103013. The reversal of 1122203103012 is 2103013022211.

1122203103012 is a `hidden beast` number, since 11 + 22 + 20 + 310 + 301 + 2 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 791007456996 + 331195646016 = 889386^2 + 575496^2 .

It is a super-2 number, since 2×1122203103012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122203103013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25258914 + ... + 25303302.

It is an arithmetic number, because the mean of its divisors is an integer number (21116433975).

Almost surely, 2^{1122203103012} is an apocalyptic number.

1122203103012 is a gapful number since it is divisible by the number (12) 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 1122203103012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520383246200).

1122203103012 is an abundant number, since it is smaller than the sum of its proper divisors (1918563389388).

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

1122203103012 is a wasteful number, since it uses less digits than its factorization.

1122203103012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44926 (or 44921 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1122203103012 its reverse (2103013022211), we get a palindrome (3225216125223).

The spelling of 1122203103012 in words is "one trillion, one hundred twenty-two billion, two hundred three million, one hundred three thousand, twelve".