1012212112 has 10 divisors (see below), whose sum is σ = 1961160998. Its totient is φ = 506106048.

The previous prime is 1012212109. The next prime is 1012212119. The reversal of 1012212112 is 2112122101.

It can be written as a sum of positive squares in only one way, i.e., 737448336 + 274763776 = 27156^2 + 16576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1012212092 and 1012212101.

It is not an unprimeable number, because it can be changed into a prime (1012212119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31631613 + ... + 31631644.

Almost surely, 2^1012212112 is an apocalyptic number.

It is an amenable number.

1012212112 is a deficient number, since it is larger than the sum of its proper divisors (948948886).

1012212112 is an equidigital number, since it uses as much as digits as its factorization.

1012212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63263265 (or 63263259 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1012212112 is about 31815.2811082976. The cubic root of 1012212112 is about 1004.0542448853.

Adding to 1012212112 its reverse (2112122101), we get a palindrome (3124334213).

The spelling of 1012212112 in words is "one billion, twelve million, two hundred twelve thousand, one hundred twelve".