221322212130 has 32 divisors (see below), whose sum is σ = 536649329664. Its totient is φ = 58410809856.

The previous prime is 221322212129. The next prime is 221322212141. The reversal of 221322212130 is 31212223122.

221322212130 is digitally balanced in base 3, 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 = 221322212097 and 221322212106.

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, 38024962 + ... + 38030781.

It is an arithmetic number, because the mean of its divisors is an integer number (16770291552).

Almost surely, 2^221322212130 is an apocalyptic number.

221322212130 is an abundant number, since it is smaller than the sum of its proper divisors (315327117534).

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

221322212130 is a wasteful number, since it uses less digits than its factorization.

221322212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76055850.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221322212130 its reverse (31212223122), we get a palindrome (252534435252).

The spelling of 221322212130 in words is "two hundred twenty-one billion, three hundred twenty-two million, two hundred twelve thousand, one hundred thirty".