1222001023123 has 8 divisors (see below), whose sum is σ = 1285638520320. Its totient is φ = 1159974601920.

The previous prime is 1222001023093. The next prime is 1222001023151. The reversal of 1222001023123 is 3213201002221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222001023123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222001023123.

It is not an unprimeable number, because it can be changed into a prime (1222001026123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402767443 + ... + 402770476.

It is an arithmetic number, because the mean of its divisors is an integer number (160704815040).

Almost surely, 2^{1222001023123} is an apocalyptic number.

1222001023123 is a deficient number, since it is larger than the sum of its proper divisors (63637497197).

1222001023123 is an equidigital number, since it uses as much as digits as its factorization.

1222001023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805537997.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1222001023123 its reverse (3213201002221), we get a palindrome (4435202025344).

The spelling of 1222001023123 in words is "one trillion, two hundred twenty-two billion, one million, twenty-three thousand, one hundred twenty-three".