12213501505440 has 96 divisors (see below), whose sum is σ = 38531993673600. Its totient is φ = 3251899751424.

The previous prime is 12213501505423. The next prime is 12213501505537. The reversal of 12213501505440 is 4450510531221.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19353115 + ... + 19974234.

It is an arithmetic number, because the mean of its divisors is an integer number (401374934100).

Almost surely, 2^{12213501505440} is an apocalyptic number.

12213501505440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213501505440 is an abundant number, since it is smaller than the sum of its proper divisors (26318492168160).

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

12213501505440 is a wasteful number, since it uses less digits than its factorization.

12213501505440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39328014 (or 39328006 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 12213501505440 in words is "twelve trillion, two hundred thirteen billion, five hundred one million, five hundred five thousand, four hundred forty".