22021003210 has 16 divisors (see below), whose sum is σ = 41969441736. Its totient is φ = 8290259968.

The previous prime is 22021003189. The next prime is 22021003223. The reversal of 22021003210 is 1230012022.

It can be written as a sum of positive squares in 4 ways, for example, as 18790103929 + 3230899281 = 137077^2 + 56841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64767487 + ... + 64767826.

Almost surely, 2^22021003210 is an apocalyptic number.

22021003210 is a deficient number, since it is larger than the sum of its proper divisors (19948438526).

22021003210 is a wasteful number, since it uses less digits than its factorization.

22021003210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129535337.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22021003210 its reverse (1230012022), we get a palindrome (23251015232).

The spelling of 22021003210 in words is "twenty-two billion, twenty-one million, three thousand, two hundred ten".