1210212112 has 10 divisors (see below), whose sum is σ = 2344785998. Its totient is φ = 605106048.

The previous prime is 1210212109. The next prime is 1210212149. The reversal of 1210212112 is 2112120121.

It can be written as a sum of positive squares in only one way, i.e., 964475136 + 245736976 = 31056^2 + 15676^2 .

It is a super-2 number, since 2×1210212112² = 2929226712063001088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210212092 and 1210212101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37819113 + ... + 37819144.

Almost surely, 2^1210212112 is an apocalyptic number.

It is an amenable number.

1210212112 is a deficient number, since it is larger than the sum of its proper divisors (1134573886).

1210212112 is an equidigital number, since it uses as much as digits as its factorization.

1210212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75638265 (or 75638259 counting only the distinct ones).

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

The square root of 1210212112 is about 34788.1030238787. The cubic root of 1210212112 is about 1065.6644995257.

Adding to 1210212112 its reverse (2112120121), we get a palindrome (3322332233).

The spelling of 1210212112 in words is "one billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".