1223100033012 has 144 divisors (see below), whose sum is σ = 3823407107520. Its totient is φ = 324119232000.

The previous prime is 1223100032909. The next prime is 1223100033037. The reversal of 1223100033012 is 2103300013221.

1223100033012 is a `hidden beast` number, since 1 + 22 + 310 + 0 + 0 + 330 + 1 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6154489 + ... + 6350112.

Almost surely, 2^{1223100033012} is an apocalyptic number.

1223100033012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223100033012 is an abundant number, since it is smaller than the sum of its proper divisors (2600307074508).

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

1223100033012 is a wasteful number, since it uses less digits than its factorization.

1223100033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504654 (or 12504649 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1223100033012 its reverse (2103300013221), we get a palindrome (3326400046233).

The spelling of 1223100033012 in words is "one trillion, two hundred twenty-three billion, one hundred million, thirty-three thousand, twelve".