1011221210033 has 8 divisors (see below), whose sum is σ = 1019971287720. Its totient is φ = 1002507667840.

The previous prime is 1011221210017. The next prime is 1011221210057. The reversal of 1011221210033 is 3300121221101.

It can be written as a sum of positive squares in 4 ways, for example, as 737207697664 + 274013512369 = 858608^2 + 523463^2 .

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 1011221210033 - 2⁴ = 1011221210017 is a prime.

It is a super-2 number, since 2×1011221210033² (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 = 1011221209993 and 1011221210020.

It is not an unprimeable number, because it can be changed into a prime (1011221210833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9078278 + ... + 9188991.

It is an arithmetic number, because the mean of its divisors is an integer number (127496410965).

Almost surely, 2^{1011221210033} is an apocalyptic number.

It is an amenable number.

1011221210033 is a deficient number, since it is larger than the sum of its proper divisors (8750077687).

1011221210033 is a wasteful number, since it uses less digits than its factorization.

1011221210033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18267747.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1011221210033 its reverse (3300121221101), we get a palindrome (4311342431134).

The spelling of 1011221210033 in words is "one trillion, eleven billion, two hundred twenty-one million, two hundred ten thousand, thirty-three".