1213220113130 has 16 divisors (see below), whose sum is σ = 2184297497640. Its totient is φ = 485176646592.

The previous prime is 1213220113129. The next prime is 1213220113207. The reversal of 1213220113130 is 313110223121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1212040259329 + 1179853801 = 1100927^2 + 34349^2 .

It is a super-4 number, since 4×1213220113130⁴ (a number of 49 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13879085 + ... + 13966224.

Almost surely, 2^{1213220113130} is an apocalyptic number.

1213220113130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213220113130 is a deficient number, since it is larger than the sum of its proper divisors (971077384510).

1213220113130 is a wasteful number, since it uses less digits than its factorization.

1213220113130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27849673.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1213220113130 its reverse (313110223121), we get a palindrome (1526330336251).

The spelling of 1213220113130 in words is "one trillion, two hundred thirteen billion, two hundred twenty million, one hundred thirteen thousand, one hundred thirty".