1033420344221 has 4 divisors (see below), whose sum is σ = 1094209776252. Its totient is φ = 972630912192.

The previous prime is 1033420344197. The next prime is 1033420344251. The reversal of 1033420344221 is 1224430243301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 939079221721 + 94341122500 = 969061^2 + 307150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1033420344221 - 2¹⁴ = 1033420327837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033420344251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30394715990 + ... + 30394716023.

It is an arithmetic number, because the mean of its divisors is an integer number (273552444063).

Almost surely, 2^{1033420344221} is an apocalyptic number.

It is an amenable number.

1033420344221 is a deficient number, since it is larger than the sum of its proper divisors (60789432031).

1033420344221 is an equidigital number, since it uses as much as digits as its factorization.

1033420344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60789432030.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1033420344221 its reverse (1224430243301), we get a palindrome (2257850587522).

The spelling of 1033420344221 in words is "one trillion, thirty-three billion, four hundred twenty million, three hundred forty-four thousand, two hundred twenty-one".