2122021210 has 16 divisors (see below), whose sum is σ = 3830589000. Its totient is φ = 846374976.

The previous prime is 2122021169. The next prime is 2122021217. The reversal of 2122021210 is 121202212.

It is a happy number.

2122021210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2097548401 + 24472809 = 45799^2 + 4947^2 .

It is not an unprimeable number, because it can be changed into a prime (2122021217) 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, 300525 + ... + 307504.

Almost surely, 2^2122021210 is an apocalyptic number.

2122021210 is a deficient number, since it is larger than the sum of its proper divisors (1708567790).

2122021210 is a wasteful number, since it uses less digits than its factorization.

2122021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608385.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2122021210 is about 46065.4014418631. The cubic root of 2122021210 is about 1285.0397843819.

Adding to 2122021210 its reverse (121202212), we get a palindrome (2243223422).

The spelling of 2122021210 in words is "two billion, one hundred twenty-two million, twenty-one thousand, two hundred ten".