1212033223120 has 40 divisors (see below), whose sum is σ = 2818038517920. Its totient is φ = 484802747520.

The previous prime is 1212033223091. The next prime is 1212033223129. The reversal of 1212033223120 is 213223302121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1212033223091 and 1212033223100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212033223129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4283635 + ... + 4557805.

It is an arithmetic number, because the mean of its divisors is an integer number (70450962948).

Almost surely, 2^{1212033223120} is an apocalyptic number.

1212033223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212033223120 is an abundant number, since it is smaller than the sum of its proper divisors (1606005294800).

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

1212033223120 is a wasteful number, since it uses less digits than its factorization.

1212033223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329443 (or 329437 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212033223120 its reverse (213223302121), we get a palindrome (1425256525241).

The spelling of 1212033223120 in words is "one trillion, two hundred twelve billion, thirty-three million, two hundred twenty-three thousand, one hundred twenty".