1222021130 has 32 divisors (see below), whose sum is σ = 2404323648. Its totient is φ = 443497600.

The previous prime is 1222021121. The next prime is 1222021133. The reversal of 1222021130 is 311202221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1222021133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46649 + ... + 67971.

It is an arithmetic number, because the mean of its divisors is an integer number (75135114).

Almost surely, 2^1222021130 is an apocalyptic number.

1222021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222021130 is a deficient number, since it is larger than the sum of its proper divisors (1182302518).

1222021130 is a wasteful number, since it uses less digits than its factorization.

1222021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21862.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1222021130 is about 34957.4188120347. The cubic root of 1222021130 is about 1069.1194694910.

Adding to 1222021130 its reverse (311202221), we get a palindrome (1533223351).

The spelling of 1222021130 in words is "one billion, two hundred twenty-two million, twenty-one thousand, one hundred thirty".