12200030100 has 108 divisors (see below), whose sum is σ = 38764365276. Its totient is φ = 3208757760.

The previous prime is 12200030057. The next prime is 12200030113. The reversal of 12200030100 is 103000221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 271458576 + 11928571524 = 16476^2 + 109218^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 27147 + ... + 158546.

Almost surely, 2^12200030100 is an apocalyptic number.

12200030100 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 12200030100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19382182638).

12200030100 is an abundant number, since it is smaller than the sum of its proper divisors (26564335176).

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

12200030100 is a wasteful number, since it uses less digits than its factorization.

12200030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185786 (or 185776 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12200030100 its reverse (103000221), we get a palindrome (12303030321).

It can be divided in two parts, 122000 and 30100, that added together give a square (152100 = 390²).

The spelling of 12200030100 in words is "twelve billion, two hundred million, thirty thousand, one hundred".