1220223223433 has 8 divisors (see below), whose sum is σ = 1276483033800. Its totient is φ = 1164908956288.

The previous prime is 1220223223381. The next prime is 1220223223451. The reversal of 1220223223433 is 3343223220221.

It can be written as a sum of positive squares in 4 ways, for example, as 381044474944 + 839178748489 = 617288^2 + 916067^2 .

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 1220223223433 - 2²² = 1220219029129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220223223396 and 1220223223405.

It is not an unprimeable number, because it can be changed into a prime (1220223223133) 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, 236383166 + ... + 236388327.

It is an arithmetic number, because the mean of its divisors is an integer number (159560379225).

Almost surely, 2^{1220223223433} is an apocalyptic number.

It is an amenable number.

1220223223433 is a deficient number, since it is larger than the sum of its proper divisors (56259810367).

1220223223433 is an equidigital number, since it uses as much as digits as its factorization.

1220223223433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472771611.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 1220223223433 its reverse (3343223220221), we get a palindrome (4563446443654).

The spelling of 1220223223433 in words is "one trillion, two hundred twenty billion, two hundred twenty-three million, two hundred twenty-three thousand, four hundred thirty-three".