12245553100 has 72 divisors (see below), whose sum is σ = 29275844976. Its totient is φ = 4408800000.

The previous prime is 12245553077. The next prime is 12245553113. The reversal of 12245553100 is 135554221.

It is a super-2 number, since 2×12245553100² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55990 + ... + 166210.

It is an arithmetic number, because the mean of its divisors is an integer number (406608958).

Almost surely, 2^12245553100 is an apocalyptic number.

12245553100 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 12245553100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14637922488).

12245553100 is an abundant number, since it is smaller than the sum of its proper divisors (17030291876).

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

12245553100 is a wasteful number, since it uses less digits than its factorization.

12245553100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110347 (or 110340 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 12245553100 in words is "twelve billion, two hundred forty-five million, five hundred fifty-three thousand, one hundred".