2102233021 has 16 divisors (see below), whose sum is σ = 2413839744. Its totient is φ = 1793473344.

The previous prime is 2102233019. The next prime is 2102233027. The reversal of 2102233021 is 1203322012.

It is a cyclic number.

It is not a de Polignac number, because 2102233021 - 2¹ = 2102233019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102232986 and 2102233004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102233027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2396635 + ... + 2397511.

It is an arithmetic number, because the mean of its divisors is an integer number (150864984).

Almost surely, 2^2102233021 is an apocalyptic number.

It is an amenable number.

2102233021 is a deficient number, since it is larger than the sum of its proper divisors (311606723).

2102233021 is an equidigital number, since it uses as much as digits as its factorization.

2102233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2102233021 is about 45850.1147326809. The cubic root of 2102233021 is about 1281.0329026385.

Adding to 2102233021 its reverse (1203322012), we get a palindrome (3305555033).

The spelling of 2102233021 in words is "two billion, one hundred two million, two hundred thirty-three thousand, twenty-one".