1213212321130 has 8 divisors (see below), whose sum is σ = 2183782178052. Its totient is φ = 485284928448.

The previous prime is 1213212321127. The next prime is 1213212321163. The reversal of 1213212321130 is 311232123121.

It can be written as a sum of positive squares in 2 ways, for example, as 1139157039969 + 74055281161 = 1067313^2 + 272131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1213212321130² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60660616047 + ... + 60660616066.

Almost surely, 2^{1213212321130} is an apocalyptic number.

1213212321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213212321130 is a deficient number, since it is larger than the sum of its proper divisors (970569856922).

1213212321130 is a wasteful number, since it uses less digits than its factorization.

1213212321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121321232120.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213212321130 its reverse (311232123121), we get a palindrome (1524444444251).

The spelling of 1213212321130 in words is "one trillion, two hundred thirteen billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirty".