1224135220105 has 32 divisors (see below), whose sum is σ = 1715879033856. Its totient is φ = 820902534144.

The previous prime is 1224135220103. The next prime is 1224135220111. The reversal of 1224135220105 is 5010225314221.

It is a happy number.

It is not a de Polignac number, because 1224135220105 - 2¹ = 1224135220103 is a prime.

It is a super-2 number, since 2×1224135220105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224135220103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1809297 + ... + 2392033.

It is an arithmetic number, because the mean of its divisors is an integer number (53621219808).

Almost surely, 2^{1224135220105} is an apocalyptic number.

It is an amenable number.

1224135220105 is a deficient number, since it is larger than the sum of its proper divisors (491743813751).

1224135220105 is a wasteful number, since it uses less digits than its factorization.

1224135220105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584073.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 1224135220105 in words is "one trillion, two hundred twenty-four billion, one hundred thirty-five million, two hundred twenty thousand, one hundred five".