222021130 has 16 divisors (see below), whose sum is σ = 406412640. Its totient is φ = 87302992.

The previous prime is 222021113. The next prime is 222021131. The reversal of 222021130 is 31120222.

222021130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222021130.

It is not an unprimeable number, because it can be changed into a prime (222021131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187564 + ... + 188743.

It is an arithmetic number, because the mean of its divisors is an integer number (25400790).

Almost surely, 2^222021130 is an apocalyptic number.

222021130 is a deficient number, since it is larger than the sum of its proper divisors (184391510).

222021130 is a wasteful number, since it uses less digits than its factorization.

222021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376373.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222021130 is about 14900.3734852520. The cubic root of 222021130 is about 605.5241047300.

Adding to 222021130 its reverse (31120222), we get a palindrome (253141352).

It can be divided in two parts, 22202 and 1130, that added together give a palindrome (23332).

The spelling of 222021130 in words is "two hundred twenty-two million, twenty-one thousand, one hundred thirty".