12210344100 has 108 divisors (see below), whose sum is σ = 39307148244. Its totient is φ = 3168080640.

The previous prime is 12210344099. The next prime is 12210344101. The reversal of 12210344100 is 144301221.

12210344100 is a `hidden beast` number, since 1 + 221 + 0 + 3 + 441 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12210344099) and next prime (12210344101).

It can be written as a sum of positive squares in 6 ways, for example, as 1481942016 + 10728402084 = 38496^2 + 103578^2 .

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 (12210344101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 150039 + ... + 216638.

Almost surely, 2^12210344100 is an apocalyptic number.

12210344100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210344100 is an abundant number, since it is smaller than the sum of its proper divisors (27096804144).

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

12210344100 is a wasteful number, since it uses less digits than its factorization.

12210344100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366734 (or 366724 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12210344100 its reverse (144301221), we get a palindrome (12354645321).

The spelling of 12210344100 in words is "twelve billion, two hundred ten million, three hundred forty-four thousand, one hundred".