2112121010 has 8 divisors (see below), whose sum is σ = 3801817836. Its totient is φ = 844848400.

The previous prime is 2112121007. The next prime is 2112121049. The reversal of 2112121010 is 101212112.

It can be written as a sum of positive squares in 2 ways, for example, as 2040057889 + 72063121 = 45167^2 + 8489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2112121010² = 8922110321766840200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112120982 and 2112121000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105606041 + ... + 105606060.

Almost surely, 2^2112121010 is an apocalyptic number.

2112121010 is a deficient number, since it is larger than the sum of its proper divisors (1689696826).

2112121010 is a wasteful number, since it uses less digits than its factorization.

2112121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211212108.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2112121010 is about 45957.8177245178. The cubic root of 2112121010 is about 1283.0382355537.

Adding to 2112121010 its reverse (101212112), we get a palindrome (2213333122).

The spelling of 2112121010 in words is "two billion, one hundred twelve million, one hundred twenty-one thousand, ten".