1222230113 has 16 divisors (see below), whose sum is σ = 1396316880. Its totient is φ = 1059833856.

The previous prime is 1222230103. The next prime is 1222230127. The reversal of 1222230113 is 3110322221.

It can be written as a sum of positive squares in 8 ways, for example, as 227647744 + 994582369 = 15088^2 + 31537^2 .

It is not a de Polignac number, because 1222230113 - 2⁸ = 1222229857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222230091 and 1222230100.

It is not an unprimeable number, because it can be changed into a prime (1222230103) 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, 118133 + ... + 128061.

It is an arithmetic number, because the mean of its divisors is an integer number (87269805).

Almost surely, 2^1222230113 is an apocalyptic number.

1222230113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1222230113 is a deficient number, since it is larger than the sum of its proper divisors (174086767).

1222230113 is a wasteful number, since it uses less digits than its factorization.

1222230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10516.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1222230113 is about 34960.4077922441. The cubic root of 1222230113 is about 1069.1804108973.

Adding to 1222230113 its reverse (3110322221), we get a palindrome (4332552334).

The spelling of 1222230113 in words is "one billion, two hundred twenty-two million, two hundred thirty thousand, one hundred thirteen".