1220221022033 has 8 divisors (see below), whose sum is σ = 1314121657128. Its totient is φ = 1126325741184.

The previous prime is 1220221022023. The next prime is 1220221022039. The reversal of 1220221022033 is 3302201220221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 206276747329 + 1013944274704 = 454177^2 + 1006948^2 .

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 1220221022033 - 2¹⁸ = 1220220759889 is a prime.

It is a super-2 number, since 2×1220221022033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220221021996 and 1220221022014.

It is not an unprimeable number, because it can be changed into a prime (1220221022039) 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, 858860 + ... + 1782717.

It is an arithmetic number, because the mean of its divisors is an integer number (164265207141).

Almost surely, 2^{1220221022033} is an apocalyptic number.

1220221022033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1220221022033 is a deficient number, since it is larger than the sum of its proper divisors (93900635095).

1220221022033 is a wasteful number, since it uses less digits than its factorization.

1220221022033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677123.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1220221022033 its reverse (3302201220221), we get a palindrome (4522422242254).

The spelling of 1220221022033 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, twenty-two thousand, thirty-three".