221012220010210 has 16 divisors (see below), whose sum is σ = 421223289902136. Its totient is φ = 83204600474368.

The previous prime is 221012220010207. The next prime is 221012220010243. The reversal of 221012220010210 is 12010022210122.

It is a happy number.

221012220010210 is digitally balanced in base 2, 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 209538913260681 + 11473306749529 = 14475459^2 + 3387227^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650035941037 + ... + 650035941376.

Almost surely, 2^{221012220010210} is an apocalyptic number.

221012220010210 is a deficient number, since it is larger than the sum of its proper divisors (200211069891926).

221012220010210 is a wasteful number, since it uses less digits than its factorization.

221012220010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300071882437.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221012220010210 its reverse (12010022210122), we get a palindrome (233022242220332).

The spelling of 221012220010210 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty million, ten thousand, two hundred ten".