12221400400005 has 16 divisors (see below), whose sum is σ = 19555184920320. Its totient is φ = 6517765453248.

The previous prime is 12221400399973. The next prime is 12221400400021. The reversal of 12221400400005 is 50000400412221.

It is not a de Polignac number, because 12221400400005 - 2⁵ = 12221400399973 is a prime.

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, 19351362 + ... + 19972931.

It is an arithmetic number, because the mean of its divisors is an integer number (1222199057520).

Almost surely, 2^{12221400400005} is an apocalyptic number.

12221400400005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12221400400005 is a deficient number, since it is larger than the sum of its proper divisors (7333784520315).

12221400400005 is a wasteful number, since it uses less digits than its factorization.

12221400400005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39345020.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12221400400005 its reverse (50000400412221), we get a palindrome (62221800812226).

The spelling of 12221400400005 in words is "twelve trillion, two hundred twenty-one billion, four hundred million, four hundred thousand, five".