1212130426 has 16 divisors (see below), whose sum is σ = 1965293568. Its totient is φ = 557377200.

The previous prime is 1212130421. The next prime is 1212130453. The reversal of 1212130426 is 6240312121.

It is a junction number, because it is equal to n+sod(n) for n = 1212130397 and 1212130406.

It is not an unprimeable number, because it can be changed into a prime (1212130421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78970 + ... + 93061.

It is an arithmetic number, because the mean of its divisors is an integer number (122830848).

Almost surely, 2^1212130426 is an apocalyptic number.

1212130426 is a deficient number, since it is larger than the sum of its proper divisors (753163142).

1212130426 is a wasteful number, since it uses less digits than its factorization.

1212130426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172317.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1212130426 is about 34815.6635151479. The cubic root of 1212130426 is about 1066.2272658722.

Adding to 1212130426 its reverse (6240312121), we get a palindrome (7452442547).

The spelling of 1212130426 in words is "one billion, two hundred twelve million, one hundred thirty thousand, four hundred twenty-six".