1220431121233 has 8 divisors (see below), whose sum is σ = 1315997615520. Its totient is φ = 1127997954720.

The previous prime is 1220431121227. The next prime is 1220431121267. The reversal of 1220431121233 is 3321211340221.

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 1220431121233 - 2¹⁷ = 1220430990161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220431121198 and 1220431121207.

It is not an unprimeable number, because it can be changed into a prime (1220431121293) 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, 783331135 + ... + 783332692.

It is an arithmetic number, because the mean of its divisors is an integer number (164499701940).

Almost surely, 2^{1220431121233} is an apocalyptic number.

It is an amenable number.

1220431121233 is a deficient number, since it is larger than the sum of its proper divisors (95566494287).

1220431121233 is a wasteful number, since it uses less digits than its factorization.

1220431121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566663887.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1220431121233 its reverse (3321211340221), we get a palindrome (4541642461454).

The spelling of 1220431121233 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred twenty-one thousand, two hundred thirty-three".