222121221130 has 16 divisors (see below), whose sum is σ = 403699929984. Its totient is φ = 87985881360.

The previous prime is 222121221097. The next prime is 222121221181. The reversal of 222121221130 is 31122121222.

It is a junction number, because it is equal to n+sod(n) for n = 222121221098 and 222121221107.

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, 107824806 + ... + 107826865.

It is an arithmetic number, because the mean of its divisors is an integer number (25231245624).

Almost surely, 2^222121221130 is an apocalyptic number.

222121221130 is a deficient number, since it is larger than the sum of its proper divisors (181578708854).

222121221130 is a wasteful number, since it uses less digits than its factorization.

222121221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215651781.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222121221130 its reverse (31122121222), we get a palindrome (253243342352).

The spelling of 222121221130 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred thirty".