1033012221 has 4 divisors (see below), whose sum is σ = 1377349632. Its totient is φ = 688674812.

The previous prime is 1033012199. The next prime is 1033012223. The reversal of 1033012221 is 1222103301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1033012221 - 2⁷ = 1033012093 is a prime.

It is a super-2 number, since 2×1033012221² = 2134228497470705682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1033012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033012223) 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, 172168701 + ... + 172168706.

It is an arithmetic number, because the mean of its divisors is an integer number (344337408).

Almost surely, 2^1033012221 is an apocalyptic number.

It is an amenable number.

1033012221 is a deficient number, since it is larger than the sum of its proper divisors (344337411).

1033012221 is an equidigital number, since it uses as much as digits as its factorization.

1033012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344337410.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1033012221 is about 32140.5074788809. The cubic root of 1033012221 is about 1010.8851571062.

Adding to 1033012221 its reverse (1222103301), we get a palindrome (2255115522).

The spelling of 1033012221 in words is "one billion, thirty-three million, twelve thousand, two hundred twenty-one".