221211422130 has 64 divisors (see below), whose sum is σ = 536594542848. Its totient is φ = 58358949120.

The previous prime is 221211422123. The next prime is 221211422167. The reversal of 221211422130 is 31224112122.

It is a happy number.

221211422130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221211422097 and 221211422106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3119832 + ... + 3189948.

It is an arithmetic number, because the mean of its divisors is an integer number (8384289732).

Almost surely, 2^221211422130 is an apocalyptic number.

221211422130 is an abundant number, since it is smaller than the sum of its proper divisors (315383120718).

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

221211422130 is a wasteful number, since it uses less digits than its factorization.

221211422130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71251.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221211422130 its reverse (31224112122), we get a palindrome (252435534252).

The spelling of 221211422130 in words is "two hundred twenty-one billion, two hundred eleven million, four hundred twenty-two thousand, one hundred thirty".