1222120113 has 16 divisors (see below), whose sum is σ = 1636588800. Its totient is φ = 811208720.

The previous prime is 1222120073. The next prime is 1222120129. The reversal of 1222120113 is 3110212221.

It is a cyclic number.

It is not a de Polignac number, because 1222120113 - 2⁹ = 1222119601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222120092 and 1222120101.

It is not an unprimeable number, because it can be changed into a prime (1222120153) 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, 970078 + ... + 971336.

It is an arithmetic number, because the mean of its divisors is an integer number (102286800).

Almost surely, 2^1222120113 is an apocalyptic number.

It is an amenable number.

1222120113 is a deficient number, since it is larger than the sum of its proper divisors (414468687).

1222120113 is a wasteful number, since it uses less digits than its factorization.

1222120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1222120113 is about 34958.8345486516. The cubic root of 1222120113 is about 1069.1483347298.

Adding to 1222120113 its reverse (3110212221), we get a palindrome (4332332334).

The spelling of 1222120113 in words is "one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred thirteen".