12321221410055 has 16 divisors (see below), whose sum is σ = 15295614717600. Its totient is φ = 9516891350400.

The previous prime is 12321221410039. The next prime is 12321221410061. The reversal of 12321221410055 is 55001412212321.

It is not a de Polignac number, because 12321221410055 - 2⁴ = 12321221410039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 6668105 + ... + 8313005.

It is an arithmetic number, because the mean of its divisors is an integer number (955975919850).

Almost surely, 2^{12321221410055} is an apocalyptic number.

12321221410055 is a deficient number, since it is larger than the sum of its proper divisors (2974393307545).

12321221410055 is a wasteful number, since it uses less digits than its factorization.

12321221410055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696594.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 12321221410055 its reverse (55001412212321), we get a palindrome (67322633622376).

The spelling of 12321221410055 in words is "twelve trillion, three hundred twenty-one billion, two hundred twenty-one million, four hundred ten thousand, fifty-five".