1220102113 has 2 divisors, whose sum is σ = 1220102114. Its totient is φ = 1220102112.

The previous prime is 1220102111. The next prime is 1220102129. The reversal of 1220102113 is 3112010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1124395024 + 95707089 = 33532^2 + 9783^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220102113 - 2¹ = 1220102111 is a prime.

It is a super-2 number, since 2×1220102113² = 2977298332294129538, which contains 22 as substring.

Together with 1220102111, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220102093 and 1220102102.

It is not a weakly prime, because it can be changed into another prime (1220102111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610051056 + 610051057.

It is an arithmetic number, because the mean of its divisors is an integer number (610051057).

Almost surely, 2^1220102113 is an apocalyptic number.

It is an amenable number.

1220102113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220102113 is an equidigital number, since it uses as much as digits as its factorization.

1220102113 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1220102113 is about 34929.9601059034. The cubic root of 1220102113 is about 1068.5595410047.

Adding to 1220102113 its reverse (3112010221), we get a palindrome (4332112334).

The spelling of 1220102113 in words is "one billion, two hundred twenty million, one hundred two thousand, one hundred thirteen".