1223100231012 has 108 divisors (see below), whose sum is σ = 3524207891568. Its totient is φ = 370636398000.

The previous prime is 1223100230983. The next prime is 1223100231047. The reversal of 1223100231012 is 2101320013221.

1223100231012 is a `hidden beast` number, since 122 + 310 + 0 + 231 + 0 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5082114 + ... + 5317337.

Almost surely, 2^{1223100231012} is an apocalyptic number.

1223100231012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223100231012 is an abundant number, since it is smaller than the sum of its proper divisors (2301107660556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223100231012 is a wasteful number, since it uses less digits than its factorization.

1223100231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10399492 (or 10399467 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1223100231012 its reverse (2101320013221), we get a palindrome (3324420244233).

The spelling of 1223100231012 in words is "one trillion, two hundred twenty-three billion, one hundred million, two hundred thirty-one thousand, twelve".