1220211130 has 16 divisors (see below), whose sum is σ = 2217705984. Its totient is φ = 483345360.

The previous prime is 1220211077. The next prime is 1220211151. The reversal of 1220211130 is 311120221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220211130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591306 + ... + 593365.

It is an arithmetic number, because the mean of its divisors is an integer number (138606624).

Almost surely, 2^1220211130 is an apocalyptic number.

1220211130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220211130 is a deficient number, since it is larger than the sum of its proper divisors (997494854).

1220211130 is a wasteful number, since it uses less digits than its factorization.

1220211130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184781.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1220211130 is about 34931.5205795568. The cubic root of 1220211130 is about 1068.5913655777.

Adding to 1220211130 its reverse (311120221), we get a palindrome (1531331351).

Subtracting from 1220211130 its reverse (311120221), we obtain a palindrome (909090909).

It can be divided in two parts, 12202 and 11130, that added together give a palindrome (23332).

The spelling of 1220211130 in words is "one billion, two hundred twenty million, two hundred eleven thousand, one hundred thirty".