222120022120 has 48 divisors (see below), whose sum is σ = 527458175460. Its totient is φ = 84171792384.

The previous prime is 222120022097. The next prime is 222120022147. The reversal of 222120022120 is 21220021222.

It can be written as a sum of positive squares in 2 ways, for example, as 219138206884 + 2981815236 = 468122^2 + 54606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222120022094 and 222120022103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7676697 + ... + 7705576.

Almost surely, 2^222120022120 is an apocalyptic number.

222120022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120022120 is an abundant number, since it is smaller than the sum of its proper divisors (305338153340).

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

222120022120 is a wasteful number, since it uses less digits than its factorization.

222120022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15382322 (or 15382299 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222120022120 its reverse (21220021222), we get a palindrome (243340043342).

The spelling of 222120022120 in words is "two hundred twenty-two billion, one hundred twenty million, twenty-two thousand, one hundred twenty".