12202123405440 has 64 divisors (see below), whose sum is σ = 38894268360960. Its totient is φ = 3253899574272.

The previous prime is 12202123405387. The next prime is 12202123405453. The reversal of 12202123405440 is 4450432120221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12202123405398 and 12202123405407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177634384 + ... + 3177638223.

It is an arithmetic number, because the mean of its divisors is an integer number (607722943140).

Almost surely, 2^{12202123405440} is an apocalyptic number.

12202123405440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202123405440 is an abundant number, since it is smaller than the sum of its proper divisors (26692144955520).

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

12202123405440 is an equidigital number, since it uses as much as digits as its factorization.

12202123405440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355272629 (or 6355272617 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 12202123405440 its reverse (4450432120221), we get a palindrome (16652555525661).

The spelling of 12202123405440 in words is "twelve trillion, two hundred two billion, one hundred twenty-three million, four hundred five thousand, four hundred forty".