1012312212 has 24 divisors (see below), whose sum is σ = 2383735200. Its totient is φ = 334341216.

The previous prime is 1012312207. The next prime is 1012312237. The reversal of 1012312212 is 2122132101.

It is a junction number, because it is equal to n+sod(n) for n = 1012312191 and 1012312200.

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, 385662 + ... + 388277.

It is an arithmetic number, because the mean of its divisors is an integer number (99322300).

Almost surely, 2^1012312212 is an apocalyptic number.

1012312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012312212 is an abundant number, since it is smaller than the sum of its proper divisors (1371422988).

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

1012312212 is a wasteful number, since it uses less digits than its factorization.

1012312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774055 (or 774053 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1012312212 is about 31816.8542128225. The cubic root of 1012312212 is about 1004.0873415442.

Adding to 1012312212 its reverse (2122132101), we get a palindrome (3134444313).

The spelling of 1012312212 in words is "one billion, twelve million, three hundred twelve thousand, two hundred twelve".