1222103230100 has 108 divisors (see below), whose sum is σ = 2818697589204. Its totient is φ = 459831275520.

The previous prime is 1222103230087. The next prime is 1222103230123. The reversal of 1222103230100 is 10323012221.

It can be written as a sum of positive squares in 18 ways, for example, as 904226024464 + 317877205636 = 950908^2 + 563806^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57008984 + ... + 57030416.

Almost surely, 2^{1222103230100} is an apocalyptic number.

1222103230100 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 1222103230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409348794602).

1222103230100 is an abundant number, since it is smaller than the sum of its proper divisors (1596594359104).

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

1222103230100 is a wasteful number, since it uses less digits than its factorization.

1222103230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23454 (or 23430 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1222103230100 its reverse (10323012221), we get a palindrome (1232426242321).

The spelling of 1222103230100 in words is "one trillion, two hundred twenty-two billion, one hundred three million, two hundred thirty thousand, one hundred".