12215003535455 has 16 divisors (see below), whose sum is σ = 16754677346880. Its totient is φ = 8374666175232.

The previous prime is 12215003535437. The next prime is 12215003535463. The reversal of 12215003535455 is 55453530051221.

12215003535455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12215003535455 - 2³⁴ = 12197823666271 is a prime.

It is a super-2 number, since 2×12215003535455² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 27615974 + ... + 28054803.

It is an arithmetic number, because the mean of its divisors is an integer number (1047167334180).

Almost surely, 2^{12215003535455} is an apocalyptic number.

12215003535455 is a deficient number, since it is larger than the sum of its proper divisors (4539673811425).

12215003535455 is an equidigital number, since it uses as much as digits as its factorization.

12215003535455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55677058.

The product of its (nonzero) digits is 450000, while the sum is 41.

Adding to 12215003535455 its reverse (55453530051221), we get a palindrome (67668533586676).

The spelling of 12215003535455 in words is "twelve trillion, two hundred fifteen billion, three million, five hundred thirty-five thousand, four hundred fifty-five".