22021210210 has 32 divisors (see below), whose sum is σ = 39851375040. Its totient is φ = 8761186368.

The previous prime is 22021210139. The next prime is 22021210213. The reversal of 22021210210 is 1201212022.

It is a happy number.

22021210210 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×22021210210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22021210213) 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, 2567389 + ... + 2575951.

It is an arithmetic number, because the mean of its divisors is an integer number (1245355470).

Almost surely, 2^22021210210 is an apocalyptic number.

22021210210 is a deficient number, since it is larger than the sum of its proper divisors (17830164830).

22021210210 is a wasteful number, since it uses less digits than its factorization.

22021210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922.

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

Adding to 22021210210 its reverse (1201212022), we get a palindrome (23222422232).

The spelling of 22021210210 in words is "twenty-two billion, twenty-one million, two hundred ten thousand, two hundred ten".