1220200113 has 16 divisors (see below), whose sum is σ = 1775434752. Its totient is φ = 739266000.

The previous prime is 1220200099. The next prime is 1220200127. The reversal of 1220200113 is 3110020221.

It is an interprime number because it is at equal distance from previous prime (1220200099) and next prime (1220200127).

It is not a de Polignac number, because 1220200113 - 2⁸ = 1220199857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220200133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156948 + ... + 164538.

It is an arithmetic number, because the mean of its divisors is an integer number (110964672).

Almost surely, 2^1220200113 is an apocalyptic number.

It is an amenable number.

1220200113 is a deficient number, since it is larger than the sum of its proper divisors (555234639).

1220200113 is a wasteful number, since it uses less digits than its factorization.

1220200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220200113 is about 34931.3628849491. The cubic root of 1220200113 is about 1068.5881495477.

Adding to 1220200113 its reverse (3110020221), we get a palindrome (4330220334).

The spelling of 1220200113 in words is "one billion, two hundred twenty million, two hundred thousand, one hundred thirteen".