10021021033 has 4 divisors (see below), whose sum is σ = 10344279808. Its totient is φ = 9697762260.

The previous prime is 10021021007. The next prime is 10021021039. The reversal of 10021021033 is 33012012001.

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 10021021033 - 2⁵ = 10021021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021021039) 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, 161629341 + ... + 161629402.

It is an arithmetic number, because the mean of its divisors is an integer number (2586069952).

Almost surely, 2^10021021033 is an apocalyptic number.

It is an amenable number.

10021021033 is a deficient number, since it is larger than the sum of its proper divisors (323258775).

10021021033 is an equidigital number, since it uses as much as digits as its factorization.

10021021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323258774.

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

Adding to 10021021033 its reverse (33012012001), we get a palindrome (43033033034).

The spelling of 10021021033 in words is "ten billion, twenty-one million, twenty-one thousand, thirty-three".