1223100212120 has 16 divisors (see below), whose sum is σ = 2751975477360. Its totient is φ = 489240084832.

The previous prime is 1223100212063. The next prime is 1223100212197. The reversal of 1223100212120 is 212120013221.

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, 15288752612 + ... + 15288752691.

It is an arithmetic number, because the mean of its divisors is an integer number (171998467335).

Almost surely, 2^{1223100212120} is an apocalyptic number.

1223100212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223100212120 is an abundant number, since it is smaller than the sum of its proper divisors (1528875265240).

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

1223100212120 is a wasteful number, since it uses less digits than its factorization.

1223100212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30577505314 (or 30577505310 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1223100212120 its reverse (212120013221), we get a palindrome (1435220225341).

The spelling of 1223100212120 in words is "one trillion, two hundred twenty-three billion, one hundred million, two hundred twelve thousand, one hundred twenty".