1223101223101 has 4 divisors (see below), whose sum is σ = 1229858688604. Its totient is φ = 1216343757600.

The previous prime is 1223101223087. The next prime is 1223101223119. The reversal of 1223101223101 is 1013221013221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 652621622500 + 570479600601 = 807850^2 + 755301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223101223101 - 2¹¹ = 1223101221053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223101223131) 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 3 ways as a sum of consecutive naturals, for example, 3378732480 + ... + 3378732841.

It is an arithmetic number, because the mean of its divisors is an integer number (307464672151).

Almost surely, 2^{1223101223101} is an apocalyptic number.

It is an amenable number.

1223101223101 is a deficient number, since it is larger than the sum of its proper divisors (6757465503).

1223101223101 is an equidigital number, since it uses as much as digits as its factorization.

1223101223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6757465502.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1223101223101 its reverse (1013221013221), we get a palindrome (2236322236322).

The spelling of 1223101223101 in words is "one trillion, two hundred twenty-three billion, one hundred one million, two hundred twenty-three thousand, one hundred one".