1220101113 has 16 divisors (see below), whose sum is σ = 2028220416. Its totient is φ = 633818640.

The previous prime is 1220101087. The next prime is 1220101123. The reversal of 1220101113 is 3111010221.

1220101113 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1220101113 - 2⁹ = 1220100601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220101123) 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, 2640681 + ... + 2641142.

It is an arithmetic number, because the mean of its divisors is an integer number (126763776).

Almost surely, 2^1220101113 is an apocalyptic number.

It is an amenable number.

1220101113 is a deficient number, since it is larger than the sum of its proper divisors (808119303).

1220101113 is a wasteful number, since it uses less digits than its factorization.

1220101113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281844.

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

The square root of 1220101113 is about 34929.9457915411. The cubic root of 1220101113 is about 1068.5592490729.

Adding to 1220101113 its reverse (3111010221), we get a palindrome (4331111334).

The spelling of 1220101113 in words is "one billion, two hundred twenty million, one hundred one thousand, one hundred thirteen".