22121000210 has 8 divisors (see below), whose sum is σ = 39817800396. Its totient is φ = 8848400080.

The previous prime is 22121000171. The next prime is 22121000233. The reversal of 22121000210 is 1200012122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21463129009 + 657871201 = 146503^2 + 25649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22121000191 and 22121000200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106050001 + ... + 1106050020.

Almost surely, 2^22121000210 is an apocalyptic number.

22121000210 is a deficient number, since it is larger than the sum of its proper divisors (17696800186).

22121000210 is a wasteful number, since it uses less digits than its factorization.

22121000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212100028.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22121000210 its reverse (1200012122), we get a palindrome (23321012332).

The spelling of 22121000210 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten", and thus it is an aban number.