2101021233 has 4 divisors (see below), whose sum is σ = 2801361648. Its totient is φ = 1400680820.

The previous prime is 2101021217. The next prime is 2101021243. The reversal of 2101021233 is 3321201012.

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 2101021233 - 2⁴ = 2101021217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101021243) 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, 350170203 + ... + 350170208.

It is an arithmetic number, because the mean of its divisors is an integer number (700340412).

Almost surely, 2^2101021233 is an apocalyptic number.

It is an amenable number.

2101021233 is a deficient number, since it is larger than the sum of its proper divisors (700340415).

2101021233 is an equidigital number, since it uses as much as digits as its factorization.

2101021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700340414.

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

The square root of 2101021233 is about 45836.8981607613. The cubic root of 2101021233 is about 1280.7867138398.

Adding to 2101021233 its reverse (3321201012), we get a palindrome (5422222245).

The spelling of 2101021233 in words is "two billion, one hundred one million, twenty-one thousand, two hundred thirty-three".