221211000210 has 32 divisors (see below), whose sum is σ = 531636723072. Its totient is φ = 58908453120.

The previous prime is 221211000203. The next prime is 221211000239. The reversal of 221211000210 is 12000112122.

221211000210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221211000210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5049511 + ... + 5093130.

It is an arithmetic number, because the mean of its divisors is an integer number (16613647596).

Almost surely, 2^221211000210 is an apocalyptic number.

221211000210 is an abundant number, since it is smaller than the sum of its proper divisors (310425722862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221211000210 is a wasteful number, since it uses less digits than its factorization.

221211000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10143378.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221211000210 its reverse (12000112122), we get a palindrome (233211112332).

The spelling of 221211000210 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred ten", and thus it is an aban number.