222120221130 has 48 divisors (see below), whose sum is σ = 597426808680. Its totient is φ = 57189573504.

The previous prime is 222120221093. The next prime is 222120221131. The reversal of 222120221130 is 31122021222.

222120221130 is a `hidden beast` number, since 2 + 221 + 202 + 211 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 172991941929 + 49128279201 = 415923^2 + 221649^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222120221131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42549157 + ... + 42554376.

Almost surely, 2^222120221130 is an apocalyptic number.

222120221130 is an abundant number, since it is smaller than the sum of its proper divisors (375306587550).

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

222120221130 is a wasteful number, since it uses less digits than its factorization.

222120221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85103575 (or 85103572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 222120221130 its reverse (31122021222), we get a palindrome (253242242352).

The spelling of 222120221130 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred thirty".