1223533105012 has 12 divisors (see below), whose sum is σ = 2141209859040. Its totient is φ = 611758859576.

The previous prime is 1223533105007. The next prime is 1223533105027. The reversal of 1223533105012 is 2105013353221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557658 + ... + 2207569.

It is an arithmetic number, because the mean of its divisors is an integer number (178434154920).

Almost surely, 2^{1223533105012} is an apocalyptic number.

It is an amenable number.

1223533105012 is a deficient number, since it is larger than the sum of its proper divisors (917676754028).

1223533105012 is a wasteful number, since it uses less digits than its factorization.

1223533105012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846470 (or 3846468 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 1223533105012 its reverse (2105013353221), we get a palindrome (3328546458233).

The spelling of 1223533105012 in words is "one trillion, two hundred twenty-three billion, five hundred thirty-three million, one hundred five thousand, twelve".