12223445678900 has 36 divisors (see below), whose sum is σ = 26525114036652. Its totient is φ = 4889334600960.

The previous prime is 12223445678891. The next prime is 12223445678909. The reversal of 12223445678900 is 987654432221.

It is an interprime number because it is at equal distance from previous prime (12223445678891) and next prime (12223445678909).

It can be written as a sum of positive squares in 6 ways, for example, as 3917129722276 + 8306315956624 = 1979174^2 + 2882068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223445678909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12182744 + ... + 13147856.

It is a 2-persistent number, because it is pandigital, and so is 2⋅12223445678900 = 24446891357800, but 3⋅12223445678900 = 36670337036700 is not.

Almost surely, 2^{12223445678900} is an apocalyptic number.

12223445678900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223445678900 is an abundant number, since it is smaller than the sum of its proper divisors (14301668357752).

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

12223445678900 is a wasteful number, since it uses less digits than its factorization.

12223445678900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091780 (or 1091773 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 12223445678900 in words is "twelve trillion, two hundred twenty-three billion, four hundred forty-five million, six hundred seventy-eight thousand, nine hundred".