1223301320121 has 8 divisors (see below), whose sum is σ = 1631076288544. Its totient is φ = 815530282560.

The previous prime is 1223301320069. The next prime is 1223301320239. The reversal of 1223301320121 is 1210231033221.

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

It is not a de Polignac number, because 1223301320121 - 2¹⁵ = 1223301287353 is a prime.

It is a super-2 number, since 2×1223301320121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1223301324121) 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, 157600 + ... + 1572081.

It is an arithmetic number, because the mean of its divisors is an integer number (203884536068).

Almost surely, 2^{1223301320121} is an apocalyptic number.

It is an amenable number.

1223301320121 is a deficient number, since it is larger than the sum of its proper divisors (407774968423).

1223301320121 is a wasteful number, since it uses less digits than its factorization.

1223301320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965431.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1223301320121 its reverse (1210231033221), we get a palindrome (2433532353342).

It can be divided in two parts, 122330 and 1320121, that added together give a triangular number (1442451 = T₁₆₉₈).

The spelling of 1223301320121 in words is "one trillion, two hundred twenty-three billion, three hundred one million, three hundred twenty thousand, one hundred twenty-one".