2101321022 has 4 divisors (see below), whose sum is σ = 3151981536. Its totient is φ = 1050660510.

The previous prime is 2101321021. The next prime is 2101321031. The reversal of 2101321022 is 2201231012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2101320988 and 2101321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525330254 + ... + 525330257.

It is an arithmetic number, because the mean of its divisors is an integer number (787995384).

Almost surely, 2^2101321022 is an apocalyptic number.

2101321022 is a deficient number, since it is larger than the sum of its proper divisors (1050660514).

2101321022 is a wasteful number, since it uses less digits than its factorization.

2101321022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050660513.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101321022 is about 45840.1682152236. The cubic root of 2101321022 is about 1280.8476282658.

Adding to 2101321022 its reverse (2201231012), we get a palindrome (4302552034).

The spelling of 2101321022 in words is "two billion, one hundred one million, three hundred twenty-one thousand, twenty-two".