1212123010223 has 8 divisors (see below), whose sum is σ = 1225520126400. Its totient is φ = 1198753264800.

The previous prime is 1212123010213. The next prime is 1212123010279. The reversal of 1212123010223 is 3220103212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212123010223 - 2²⁴ = 1212106233007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212123010195 and 1212123010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212123010213) 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, 6753623 + ... + 6930776.

It is an arithmetic number, because the mean of its divisors is an integer number (153190015800).

Almost surely, 2^{1212123010223} is an apocalyptic number.

1212123010223 is a deficient number, since it is larger than the sum of its proper divisors (13397116177).

1212123010223 is a wasteful number, since it uses less digits than its factorization.

1212123010223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13685377.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1212123010223 its reverse (3220103212121), we get a palindrome (4432226222344).

The spelling of 1212123010223 in words is "one trillion, two hundred twelve billion, one hundred twenty-three million, ten thousand, two hundred twenty-three".