1212213230 has 16 divisors (see below), whose sum is σ = 2182915440. Its totient is φ = 484678272.

The previous prime is 1212213227. The next prime is 1212213241. The reversal of 1212213230 is 323122121.

It is a junction number, because it is equal to n+sod(n) for n = 1212213199 and 1212213208.

It is a congruent 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, 59 + ... + 49238.

It is an arithmetic number, because the mean of its divisors is an integer number (136432215).

Almost surely, 2^1212213230 is an apocalyptic number.

1212213230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212213230 is a deficient number, since it is larger than the sum of its proper divisors (970702210).

1212213230 is a wasteful number, since it uses less digits than its factorization.

1212213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51763.

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

The square root of 1212213230 is about 34816.8526722333. The cubic root of 1212213230 is about 1066.2515443025.

Adding to 1212213230 its reverse (323122121), we get a palindrome (1535335351).

It can be divided in two parts, 12122 and 13230, that added together give a palindrome (25352).

The spelling of 1212213230 in words is "one billion, two hundred twelve million, two hundred thirteen thousand, two hundred thirty".