10033001221 has 8 divisors (see below), whose sum is σ = 10080222680. Its totient is φ = 9985876992.

The previous prime is 10033001171. The next prime is 10033001233. The reversal of 10033001221 is 12210033001.

It can be written as a sum of positive squares in 4 ways, for example, as 146676321 + 9886324900 = 12111^2 + 99430^2 .

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 10033001221 - 2⁷ = 10033001093 is a prime.

It is a super-2 number, since 2×10033001221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10033001021) 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, 186835 + ... + 234463.

It is an arithmetic number, because the mean of its divisors is an integer number (1260027835).

Almost surely, 2^10033001221 is an apocalyptic number.

It is an amenable number.

10033001221 is a deficient number, since it is larger than the sum of its proper divisors (47221459).

10033001221 is an equidigital number, since it uses as much as digits as its factorization.

10033001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48615.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10033001221 its reverse (12210033001), we get a palindrome (22243034222).

The spelling of 10033001221 in words is "ten billion, thirty-three million, one thousand, two hundred twenty-one".