1212234312 has 16 divisors (see below), whose sum is σ = 3030585840. Its totient is φ = 404078096.

The previous prime is 1212234299. The next prime is 1212234329. The reversal of 1212234312 is 2134322121.

It is a super-2 number, since 2×1212234312² = 2939024054380226688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 25254858 + ... + 25254905.

It is an arithmetic number, because the mean of its divisors is an integer number (189411615).

Almost surely, 2^1212234312 is an apocalyptic number.

1212234312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212234312 is an abundant number, since it is smaller than the sum of its proper divisors (1818351528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212234312 is a wasteful number, since it uses less digits than its factorization.

1212234312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50509772 (or 50509768 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1212234312 is about 34817.1554265997. The cubic root of 1212234312 is about 1066.2577254440.

Adding to 1212234312 its reverse (2134322121), we get a palindrome (3346556433).

The spelling of 1212234312 in words is "one billion, two hundred twelve million, two hundred thirty-four thousand, three hundred twelve".